c

In Japan that was distant, a local professor decided to go to a bang-out store. He purchased a new fuck-fest doll there. She looks very much like a human, but she's a cyborg. She has soft skin and even has internal organs, such as cunt and caboose. Dude came with a purchase home and turned on the computer to update the program for fuck-fest dolls. After a couple of minutes, the android commenced working. Definitely it's time to have some fun. The dude starts to take off his clothes from the doll. Wow. She certainly looks fine. After a couple of minutes, the dude is already fucking the doll with a thick dick in her pink cooch. If you prefer human fuck-fest and android - this game is undoubtedly for you. Enjoy it at this time.
  • Views: 7495
  • Added: 2018-06-24

Discussion: Total Comments : 0


3-10-9

Play the most popular sex game today. Why wait? It's totally free!

Tags: hentai, browser, sex, porn
Categories: HTML5 Browser Games
Views: 137k

100% Views: 137k

The sluttiest waifus and hentai girls are waiting for you right now! Create and chat with your own sexy hentai waifu and generate limitless ai porn, sex roleplay and erotic stories with them. 100% uncensored ask them anything. Don't make them wait and go chat with them to experience the best AI sexchat ever.

Tags: hentai, browser, sex, porn
Categories: HTML5 Browser Games
Views: 725k

100% Views: 725k
Adobe Flash Games Adobe Flash Games
The fierce rivalry between Tsunade and the Raikage had long been locked in a heated battle of wills, but things escalated beyond mere rivalry. Out of nowhere, whispers spread like wildfire: the Fifth Hokage was seen eagerly pleasuring the Raikage’s impressive manhood. Afterwards, the pair were locked in an urgent, fervent lovemaking session. She surrendered to waves of pleasure, writhing beneath him. The intensity was so overwhelming it left her trembling, fluids spilling freely. Word traveled fast across the shinobi networks, leaving many mouths agape. Their history was packed with grudges and battles, never hinting at anything tender or intimate. The steamy night shattered all assumptions, turning enemies into lovers in a shocking display. Step into the shadows and explore the reckless passion between two of the most powerful figures in the ninja world. You’ll control their steamy encounters, pushing boundaries and exploring every sultry moment. This isn’t your typical ninja showdown — it’s a raw, erotic saga of dominance, submission, and release. Jump in now and rewrite the history of these legendary rivals with your own hands and desires.

Added:
Tags:

big boobs

,

cumshot

,

facial

,

blowjob

,

funny

,

naruto

,

titjob

,

tsunade

,

story

,

naruto sex

,

games of desire

,

naruto hentai

,

naruto hentai flash game

,

naruto porn

,

naruto xxx

,

naruto shippuden

,

featured

,

ay (4th raikage)


Categories:

Adobe Flash Games

,

Naruto Sex Games

,

Tsunade Hentai Games


Views: 2kk ★★★☆☆
Views: 2kk ★★★☆☆
3.7 5.0 4085
Adobe Flash Games Adobe Flash Games
Salma went through a deeply traumatic experience that left lasting scars. It was a late night outing with her group of friends when they were surrounded by a threatening crowd of men. Their harassment quickly escalated, focusing especially on Salma, who became their main target. Afterwards, Salma was overwhelmed by fear and a deep sense of violation. Determined not to be broken by what happened, Salma vowed to take back power and agency. She returned to her work as a stripper, a familiar environment, but approached it with a sharper awareness. Now, every move was measured; she watched every detail, protecting herself with vigilance. Step into Salma’s world and feel the tension as she battles trauma and fights to reclaim her life amid the shadows of the club. Every choice you make will influence how Salma heals, survives, and perhaps finds unexpected empowerment. This is a tale soaked in harsh realities yet glowing with hope and determination. Will you help Salma confront her fears and reclaim her nights?

Added:
Tags:

bdsm

,

strap

,

torture

,

rough sex

,

touching game

,

mmf threesome


Categories:

Adobe Flash Games


Views: 47k ★★★☆☆
Views: 47k ★★★☆☆
3.3 5.0 4085
Adobe Flash Games Adobe Flash Games
Her enormous breasts are dripping with milk, practically bursting out of her top, and she's right here, waiting for you. You’ll have to use every filthy plaything at your disposal to tease and torment her, and as usual... the ecstasy will shatter boundaries. Welcome back to the dark, erotic playground of Milk Plant, where Tifa’s body becomes your canvas. However, Tifa’s growing used to your previous BDSM sessions. Simple domination has dulled her senses. You must also push her further, combining torment with humiliation. Yes, you’ll break her down until she wets herself for your amusement. Language barriers won’t stop you if you’re familiar with past encounters. The sensory overload of breast milk, pain, and shame will hook you hard. Her voluptuous figure and massive boobs are ready for your wicked games. From intense milking to extreme pissing scenes, nothing is off-limits. Every interaction pushes boundaries with graphic, raw content. Prepare to dominate, torment, and milk her until she’s dripping and trembling. Can you handle the rising intensity of this milk-fueled nightmare?. This game lives in the realm of hardcore milk fetish, torture, and public humiliation. Test your limits as you milk, torment, and humiliate Tifa like never before.

Added:
Tags:

big boobs

,

brunette

,

extreme

,

tifa

,

bdsm

,

milking

,

final fantasy

,

tifa lockhart

,

breast expansion

,

torture

,

milk

,

milk plant

,

pissing

,

pee

,

xxx game

,

breast milk


Categories:

Adobe Flash Games


Views: 125k ★★★★☆
Views: 125k ★★★★☆
4.1 5.0 4085
Adobe Flash Games Adobe Flash Games
"The Legend of Lust" is one huge job that integrates roleplay and turn based battles with strong sexual styles and tells regarding the battle for the control over all nine rings of Hell. The minigame right here must assist you to much better get ready for such complicated experience considering that right here you will discover the crucial functions of different rings and satisfy a few of the primary characters. Work in development.

Added:
Tags:

sex

,

hard sex

,

succubus

,

rough sex

,

sexy girl

,

sex toys

,

bisexual


Categories:

Adobe Flash Games


Views: 12k ★★★☆☆
Views: 12k ★★★☆☆
3.7 5.0 4085
Adobe Flash Games Adobe Flash Games
Mai’s slick, dripping cunt awaits your touch – a blonde guy’s fingers are buried deep inside her, sliding in and out with slow, teasing strokes. You know who it really is if you’re sharp: Andy Bogard, the ever-dedicated lover. Your job? Forget about anything too hard or heavy – no dicks allowed here. Just your thumbs and tongue are the tools to bring Mai’s dripping pussy to the edge. Every flick, every press, every swirl counts when you’re revving up this fiery queen of King of Fighters. The game lets you switch between teasing modes, shifting from steady fingering to slow, twisting circles that coax every drop of pleasure from Mai’s soaking wet folds. Tickle her clit, plunge your fingers deeper, or let your tongue lap at her dripping slit, all while you toy with her vibrating dildo that hums with a wicked rhythm inside her. The rest is on you – experiment with different angles, switch to the close-up camera views where you can nearly feel the warmth and wetness of her cunt right through the screen. There’s this fierce, raw energy as Mai’s ample breasts bounce with every stroke, her nipples twitching under your careful ministrations. Her satin skin shines with a flush of excitement, lips parted in a mix of gasps and moans that echo around you. You’ll want to hear her call your name or beg for more as you edge her closer and closer to that explosive release. When you feel Mai’s been driven far enough down the path of exquisite torture, hit the star button and watch her shatter. Streams of liquid heat burst from her tight pussy, soaking everything below in an orgasmic flood. That sweet, salty gush confirms you’ve mastered the art of pure finger-skill, the delicate dance of tongue and thumb coaxing a goddess to squirt without any intrusion but your own expert fingers. This isn’t just a quick thrill – it’s a challenge. Controlling Mai’s arousal and timing the climax perfectly takes concentration and finesse. You could call it practice, but once you get the hang of it, the game becomes an addictive tease that pulls you deeper into intimate, filthy games with one of the hottest fighters in KOF history. The pounding rhythm, the quiet breathy moans, the slick glistening pussy always ready to burst – all build a feverish tension that rewards only the most skilled players. So dive in, explore every tantalizing touch, and find the precise moment Mai’s cunt floods with shameless squirts. Don’t just play – savor the raw, sweaty pleasure. Let Mai’s lust explode, again and again, under your skilled thumbs and hungry mouth. Mai’s slick, dripping cunt awaits your touch – some blonde dude’s fingers are plunging lovingly into her dripping pussy, slowly thrusting. True fans spot Andy Bogard right away, the familiar fingerwork sparking Mai’s moans. Forget penetration from anything bigger – just your thumbs and tongue will do. You’re limited to thumb work and oral teasing, driving her wild without a shaft. Each teasing motion stokes Mai’s fiery hunger, building toward an unforgettable climax. You can toggle different fingers motions, changing between steady pumps and swirling twists that make her cunt tremble. Slide your tongue along her swollen clit, dig your fingers just right, and occasionally tease with her buzzing toy inside. Play with camera angles, get intimate close-ups that zoom in as Mai’s pussy glistens and squirms for more. Her big tits jiggle wildly as your fingers stroke her wet cunt, nipples hardening from the heat. Her glowing skin flushed, mouth open in ragged breaths, Mai’s moans fill the air as you push her closer to orgasm. Her needy cries and whispered pleas fuel your fingers to drive her over the edge. Once you’ve teased her tight pussy to the brink, hit the star and let the orgasmic flood pour out. She squirts messy, hot jets of pleasure that soak her thighs and everything under her. The gush of juice says it all – your fingers and tongue are weapons of erotic mastery. Playing this game tests your finesse and timing like no other. Bringing Mai to wet, trembling release demands patience and skilled fingers. What starts as finger practice quickly turns into a full-blown addiction, watching Mai melt under your touch. Every slap, moan, and glistening slit intensifies the tension, priming Mai for an explosive orgasm. Explore each delicious sensation and nail the perfect squirt every time. Lose yourself in the filthy details and unrestrained lust. Drive Mai wild with fingers and tongue until she’s drenched in pure ecstasy

Added:
Tags:

hentai

,

big tits

,

game

,

pussy

,

masturbate

,

squirt

,

nude

,

mai

,

kof

,

cunnilingus

,

fingering

,

mai shiranui

,

king of fighters

,

minigame

,

andy bogard

,

bouncing boobs


Categories:

Adobe Flash Games


Views: 31k ★★★☆☆
Views: 31k ★★★☆☆
3.8 5.0 4085
Adobe Flash Games Adobe Flash Games
Jump right into a naughty twist on the classic League of Legends lineup, where you'll engage with iconic girls like Lux, Miss Fortune, and Nidalee in explicit scenes. The gameplay mixes a playful memory challenge with hardcore interaction — match cards to unlock tantalizing moments and get intimate with your chosen heroine. As you progress, expect revealing drawings and explicit animations that push boundaries and keep the tension building. The radiant Lux isn’t just about light and magic — her seductive secret emerges only when you outsmart her in the memory rounds. With Miss Fortune, the stakes are higher, igniting fiery hot interactions as soon as you crack her card combo. Unleash the wild side of Nidalee by unlocking her secrets hidden beneath the game’s surface. Simple yet effective controls guide you smoothly from one erotic reveal to the next, keeping your focus razor-sharp and your pulse racing. A vivid hentai aesthetic colors every scene with crisp lines and colors that emphasize every curve, creating a feast for your eyes. Every level conquered strips away more boundaries until the characters are completely exposed, both physically and emotionally. Ideal if you want intense scenes fast with minimal fuss, letting you focus entirely on the pleasure in front of you. See if your mind and lust can handle the spicy challenges while you get down and dirty with Lux, Miss Fortune, and Nidalee.

Added:
Tags:

hentai

,

parody

,

lux

,

nidalee

,

miss fortune

,

league of legends

,

memory game


Categories:

Adobe Flash Games


Views: 25k ★★★☆☆
Views: 25k ★★★☆☆
3.9 5.0 4085
Adobe Flash Games Adobe Flash Games
2016 update: The problematic audio should be updated now. Boink copyright - together with freeware sounds!. Taking place directly after the nonsensical shenanigans of Sex Kitten Misdeed Spree, Sex Kitten Prison Break puts you, starring as our trouble-magnet orgy maniac, in a indeed shitty situation including a dingy prison cell, DMT aftereffects and a psychopath for a cellmate! What will happen to our skimpy zerohero? Can he be found guilty and sentenced to death? Or will he break out and continue drilling crap up just like he always did? Let's find out. Expect the regular insanity, absurdity and overall departure from sanity you've come to expect from the Sex Kitten Series! Manages Up, Down, Left, Right for movement, interact with things with mouse. Thanks to everyone who helped me out for this project!. Satiate recommend this for the mature section.

Added:
Tags:

sex

,

prison


Categories:

Adobe Flash Games


Views: 7k ★★★★☆
Views: 7k ★★★★☆
4.0 5.0 4085
Adobe Flash Games Adobe Flash Games
In this adult flash game, you slip into the shoes of a guy obsessed with Laura, a busty blonde whose charm still lingers. The fiery passion you once shared has cooled off, and now your connection begs for a fresh jolt. You know exactly what might light the fuse again - a daring threesome. But persuading Laura into this taboo territory requires knowing her inside out - are you truly ready to soak in her secrets? Each decision you carve in this world matters, shaping six unique endings full of erotic possibilities. More than just a porn game, it's an immersive journey where flesh meets fantasy amid steamy encounters. Feel the heat rise as Laura’s big boobs sway sensually, her blonde locks framing her eager face perfectly. Adding extra thrill, the game weaves steamy lesbian scenes between the girls, pushing boundaries further. Every encounter is loaded with raw energy, making every choice a chance to dive deeper into your darkest pleasures. Forget vanilla romances - this adult flash game serves up provocative twists and turns no one saw coming. Master the art of persuasion and control, and experience how far you can push love, lust, and taboo before the final climax hits.

Added:
Tags:

big boobs

,

blonde

,

lesbian

,

3d sex

,

porn game

,

adult flash game


Categories:

Adobe Flash Games


Views: 17k ★★★☆☆
Views: 17k ★★★☆☆
3.7 5.0 4085
HTML5 Browser Games HTML5 Browser Games
Following Orochimaru's ruthless invasion, Konoha struggles to rebuild, its walls weakened and morale deeply shaken. Into this chaos slips a silent infiltrator, a secret agent working for Orochimaru, sent to worm their way into Konoha’s core. The goal is simple but deadly—to erode Konoha’s unity by stirring internal conflict, setting the stage for Orochimaru’s resurgence. Playing as this mysterious infiltrator, you dive into a web of lies and manipulation, executing secret missions that chip away at Konoha’s defenses. Your decisions carve the fate of Konoha: will you spread mistrust, corrupt influential shinobi, or ignite rivalries that tear the village apart? Embedded within the gameplay are discreet Japanese phrases and cultural touches that enhance your immersion into the ninja world and its clandestine battles. Get ready to delve into a seductive narrative of spies and secrets, where danger lurks behind every smile and loyalty is a rare commodity. More than a game, it’s an intimate plunge into a realm where control is won through subtlety and seduction, and your wits determine Konoha’s survival. Step forward into the darkness, claim your place among the shadows, and write your own legend in this gripping tale of Konoha’s decline and Orochimaru’s revenge.

Added:
Tags:

creampie

,

big tits

,

parody

,

handjob

,

footjob

,

naruto

,

3dcg

,

titfuck

,

tsunade

,

shizune

,

hinata hyuga

,

tenten

,

ino yamanaka

,

harem

,

oral sex

,

vaginal sex

,

romance

,

ayame

,

groping

,

lady tsunade

,

kurenai yuhi

,

Male Protagonist

,

Sandbox

,

Mobile Game

,

Male Domination

,

sakura-haruno


Categories:

HTML5 Browser Games

,

Naruto Sex Games


Views: 420 ☆☆☆☆☆
Views: 420 ☆☆☆☆☆
5.0 5.0 4085
HTML5 Browser Games HTML5 Browser Games
Come one, come all, ladies and gents, boys and girls alike! Get ready to have your senses blown away by the singular Dark Illusionist Girl, who takes control of the stage with an intoxicating blend of sorcery and seduction! Watch in awe as she faces down the electrifying snap of the electro whip, dodging its dangerous lash with a swift flick and unleashing a dazzling burst of arcane power. Then, catch your breath while she steps into the mysterious mystic box, a realm where illusion and reality collide so fast you'll doubt your own eyes. You won’t want to let this mesmerizing performance slip through your fingers! Yet, the excitement only grows as she draws you closer with every sultry move, inviting you into a shadowy realm where desire and danger intertwine. Experience the electric tension as her spells weave around you, pulling you into an intimate game where control shifts like smoke through fingers. With each movement, she promises thrills that ripple through your body, teasing your senses and daring you to dive deeper. Dive headfirst into the shadows and lose yourself in a tale where illusion becomes flesh, and desire burns hotter than any flame. The question is simple: can you handle the Dark Illusionist Girl’s final act? The curtain rises, the tension thickens, and the night belongs to her.

Added:
Tags:

hentai

,

parody

,

pov

,

anime

,

blowjob

,

blonde

,

interactive

,

yu gi oh

,

simulator

,

niicri

,

dark magician girl


Categories:

HTML5 Browser Games


Views: 1k ☆☆☆☆☆
Views: 1k ☆☆☆☆☆
5.0 5.0 4085
HTML5 Browser Games HTML5 Browser Games
The era of Gustav's carefree bliss had come to an end. He was a skilled mage who had spent his days in comfort and obedience, studying under the formidable Mavis alongside his so-called "half-sister" Lucy. However, strange and unsettling events began to fracture that peace, demanding a sense of responsibility and gravity he had never known before. The growing mystery surrounding these incidents and his hidden origins weighed heavily on him, tangled further by the complex web of connections forming around him. Romance and joy, laced with a magnetic “H element,” intertwined themselves deeply through an increasing number of characters in his life, making his quest for answers messier and adding sharpness and allure to his already tangled journey. With every meeting, Gustav found himself entangled in a mixture of seduction and struggle, compelled to balance magical dangers with the rising passions pulling at his resolve. The sparking interactions and fiery encounters transformed his path into a precarious balance where responsibility clashed wildly with temptation. Once protected and innocent, Gustav now grappled with not only the shrouded truths of his past but the dizzying allure of fresh bonds, all pulling him into a maze of enigma and seduction. This adventure offered peril paired with pleasure, unearthing secrets fused with lust, begging the player to plunge deep into a world where arcane power met primal craving. Could Gustav seize control of his destiny, or will the tempest of emotions and secrets devour him whole? The choice awaits those daring enough to venture forward.

Added:
Tags:

erza scarlet

,

erza scarlett

,

fairy tail

,

big tits

,

parody

,

animated

,

fantasy

,

big ass

,

lucy heartfilia

,

juvia lockser

,

flare corona

,

cana alberona

,

mirajane strauss

,

transformation

,

humor

,

vaginal sex

,

monster girl

,

ahegao

,

wendy marvell

,

selene

,

levy mcgarden

,

Male Protagonist

,

Mobile Game

,

lisanna strauss

,

dimaria yesta

,

dimaria

,

carla

,

mavis vermillion

,

irene belserion

,

touka

,

jenny realight

,

chelia blendy

,

2dcg

,

chelia

,

brandish

,

kagura mikazuchi

,

ultear milkovich

,

minerva orland

,

aquarius

,

acnologia


Categories:

HTML5 Browser Games


Views: 398 ☆☆☆☆☆
Views: 398 ☆☆☆☆☆
5.0 5.0 4085
HTML5 Browser Games HTML5 Browser Games NEW
Step into the shadows with Lena who chose the quiet life of a curator expecting calm. Soon, what begins as a routine job spirals into a disturbing mystery. Hidden amidst ancient tomes and shadowy stacks, Lena stumbles upon arcane secrets. The tales she finds reach beyond mere folklore, gnawing at the edges of her mind. The dark murmurs intensify, threatening to overwhelm her senses, pulling Lena deeper into a struggle between reason and desire. She feels herself unraveling under the weight of these forbidden urges. The line blurs between madness and obedience as Lena fights to keep her mind intact. Can Lena break free from the cursed whispers, or will she become their next victim? Get ready to explore a haunting narrative that seduces and distorts. Your actions decide how deep Lena falls into madness and desire. Do you dare follow her down this twisted path?. Start playing to uncover the secrets waiting in the dark. Step into the shadows with Lena who chose the quiet life of a curator expecting calm. Soon, what begins as a routine job spirals into a disturbing mystery. Hidden amidst ancient tomes and shadowy stacks, Lena stumbles upon arcane secrets. The tales she finds reach beyond mere folklore, gnawing at the edges of her mind. The dark murmurs intensify, threatening to overwhelm her senses, pulling Lena deeper into a struggle between reason and desire. She feels herself unraveling under the weight of these forbidden urges. The line blurs between madness and obedience as Lena fights to keep her mind intact. Can Lena break free from the cursed whispers, or will she become their next victim? Get ready to explore a haunting narrative that seduces and distorts. Your actions decide how deep Lena falls into madness and desire. Do you dare follow her down this twisted path?. Start playing to uncover the secrets waiting in the dark.

Added:
Tags:

fantasy

,

adult

,

visual novel

,

erotic

,

female-protagonist

,

singleplayer

,

lgbt

,

ai generated

,

story rich

,

psychological horror


Categories:

HTML5 Browser Games


Views: 2k ★★★★★
Views: 2k ★★★★★
5.0 5.0 4085
HTML5 Browser Games HTML5 Browser Games NEW
Step into a universe where Danny Fenton trades ghost hunting for chasing after the hottest girls with this incredibly immersive game that flips the script on the classic "Danny Phantom" story. This game turns the spotlight away from ghost battles and onto the thrilling chase of some of the most beloved heroines in the series. In this interactive experience, the most popular female characters from the show step into fresh roles as candidates vying for Danny’s attention. There’s no shortage of steamy encounters and playful banter that never fails to raise the temperature - because let’s be honest, some of those ghost girls are downright irresistible. It’s a daring spin on the familiar universe, blending charming storytelling with provocative interactions that keep you hooked. Every choice you make influences the course of Danny’s relationships, pulling you deeper into a web of passion and intrigue. From flirty dialogue to intense scenes, this title pushes boundaries in ways the original series only hinted at. You will have to navigate through emotional highs and lows, winning over hearts while balancing Danny’s complicated life. Visuals that pop and mechanics that flow seamlessly make every interaction feel alive and urgent. If you’ve ever dreamed about what might happen if Danny traded ghost hunting for romance, this game is your chance to make that fantasy come alive. Jump straight into the action and see how far Danny’s charm can take him when the ghosts take a backseat to romance. This is not just a game; it’s your ticket to a Danny Phantom experience unlike anything before.

Added:
Tags:

parody

,

animated

,

masturbation

,

handjob

,

milf

,

titfuck

,

voyeurism

,

kitty

,

anal sex

,

incest

,

oral sex

,

vaginal sex

,

slavery

,

sex-toys

,

ahegao

,

danny phantom

,

paulina

,

desiree

,

samantha manson

,

tucker foley

,

exhibitionism

,

possession

,

Male Protagonist

,

Mobile Game

,

lily

,

paranormal

,

jack fenton

,

danny fenton

,

ember mclain

,

penelope spectra

,

2dcg

,

dash baxter

,

maddie fenton

,

paulina sanchez

,

school setting

,

superpowers

,

turn based combat

,

monster dash

,

princess dorathea

,

dragon princess


Categories:

HTML5 Browser Games


Views: 829 ★★★★★
Views: 829 ★★★★★
5.0 5.0 4085
HTML5 Browser Games HTML5 Browser Games NEW
Every quest an adventurer takes could be their last, and for our protagonist, that grim fate arrives sooner than expected. Our hero didn’t even get a chance to raise his sword against monsters or plunder riches – instead, treachery struck from within his own group, leading to his untimely demise. Witnessing this brutal betrayal, a powerful goddess could not ignore the unfairness and decided to offer him a rare opportunity to return from death. Back among the living, he stands at a crossroads – will he seize this second life for vengeance, redemption, or something unforeseen? Does he plunge back into the dangerous lifestyle that got him killed, chasing glory and thrills? Maybe revenge burns hottest, pushing him to track and punish his betrayers for their cowardice. Alternatively, he could seek redemption and dedicate himself to a nobler quest, serving a cause worthier than personal gain. In this gritty adventure, your decisions will shape whether he falls again or rises as a force to be reckoned with. Take control now: avenge, survive, or transform and see where your choices lead.

Added:
Tags:

big tits

,

animated

,

handjob

,

fantasy

,

adventure

,

footjob

,

3dcg

,

titfuck

,

big ass

,

harem

,

vaginal sex

,

cheating

,

slave

,

monster girl

,

mind control

,

virgin

,

Male Protagonist

,

Male Domination


Categories:

HTML5 Browser Games


Views: 369 ☆☆☆☆☆
Views: 369 ☆☆☆☆☆
5.0 5.0 4085
Up