Enter the vent

You grab the sides of the vent and enter headfirst into the ventilation shaft. Just like the previous vent, it's quite tight, and takes you quite some time to maneuver through. You continue crawling on your hands an knees for nearly half an hour, carefully contorting your body, moving an inch at a time so as to not get stuck or make noise.

Suddenly however, the vent beneath your gives out. You inhale sharply in fear as the front section of the shaft tips downwards, causing you to slide out of it and fall about 6 feet onto the floor below.

You land hard, dazing yourself and causing your vision to get all blurry. As you struggle to lift yourself off the tile floor, you notice it's all sticky. To your right, you think you hear something click. It sounds like a camera.

As your vision returns, you're met with a horrifying sight.

Before you is a large laboratory room. On the left side is the Mai you know, stark naked, gagged and chained up by her wrists. On the right side is a large, ten foot woman with a gigantic, floppy dick. She has short black hair, long sexy legs, and is holding a camera. [Bayonetta, Bayonetta]

Finally, on the back wall, there is a large assortment of gigantic filled condoms, hanging on the wall as if they were part of a collection. They were all different colors and each of them had a name written on them and a photo of a woman's face taped onto the front.

[Mia Fey, Ace Attorney]

[Kallen Kozuki, Code Geass]

[Sailor Jupiter, Sailor Moon]

[Rikku, Final Fantasy X]

[Laura Matsuda, Street Fighter]

[Laura Croft, Tomb Raider]

[Widowmaker, Overwatch]

[Meryl Silverburgh, MGR]

[Raven, Teen Titans]

[Mikasa Ackerman, Attack on Titan]

[Camilla, Fire Emblem]

[Jill Valentine, Resident Evil]

[Yang Xiao Long, RWBY]

[Princess Peach, Mario]

[Bulma, Dragonball]

[Saria, Legend of Zelda]

[Risa Hawkeye, FMA]

[Tsunade, Naruto]

[Nico Robin, One Piece]

[Katarina, League of Legends]

[Marie Rose, Dead or Alive]

[Lusamine, Pokemon]

[2B, NeiR]

There are also pictures of the original Mai, as well as pictures of a previous Haruhi and May.

"Welcome, dear..." Says the woman. "To the end of the line..."

...

There wasn't any escape from the giant woman. The only door out of the room was locked, and fighting back proved to be a fruitless endeavor. The woman grabbed you in her arms, pulled Shantae's pants down, exposing your pussy once more, and tore off her bra, causing your boobs to pop out majestically. You were then chained to the wall next to Mai by your hands, where you hang pathetically.

"Right..." Says the woman.

"About now is when you see firsthand what we do here, darling... I would ask your name, usually, but... *giggle* ...I've already encountered somebody like you before..."

Suddenly, Mai breaks into tears.

"Ah, seems you've realized what May's arrival means for you! Well, let's not keep her waiting then, huh Mai?"

The woman struts up to Mai and strokes her chin. She licks her lips and starts to undo the bindings on her arms.

"N-NOOO!" Cries Mai. "Get off of me! No! Don't touch me!"

You watch in horror as the woman carries Mai over to the center of the room and pins her down on the floor.

"Pleeeease! May, you gotta help me! Please, somebody, anyb-mrhgggrrh! Mmmpgh!"

The massive futa sticks her now rock-hard dick onto Mai's face. It begins ingesting her, pulling her into the shaft. The woman keeps Mai pinned down until her entire head was engulfed. Then, she stands up and begins using her hands to stroke her shaft, pulling Mai's body in even more. You watch as Mai's fat ass and thick calves slip into the massive dong, sealing her fate. She lands in the futa's modified ballsack, screaming muffled screams and uselessly pushing against the stretchy skin walls.

As soon as Mai is safely secured in the sack, the futa exits through the lone door, then returns with a massive dildo and a bag of condoms. She places a light blue condom on her dick and sticks the dildo to the floor and sits on it. She continues stroking her cock and bouncing up and down on the dildo, her balls dangling and swinging around as she did so. Fifteen minutes later, the struggling shape of Mai has vanished, and the futa's balls have contracted.

The woman slams her ass to the ground and lets out a resounding moan of pleasure. She rapidly rubs her cock and a long white rope of semen shoots forth from her dick, filling the condom.

"Ngh! Come on... Baby... There's a good girl..."

The futanari crosses her legs, curls her bare feet and grits her teeth. She splurts out jizzload after jizzload, until at last the condom reached the same size as the ones on the wall. About the size of a beach ball.

The woman then pulls off the condom, ties it up, and licks up her dick to clean it up. Then, she walks over to the wall of condoms and pins her new trophy up. With a permanent marker far too small for her hands, she writes the name "Mai Shiranui II", and tapes a picture of her face to the condom.

Then, the woman walks back over to you. You're shaking and sobbing so hard that you find yourself unable to respond properly.

"W-why..." You stutter. "Why would... you do that?"

"Because I love it!" Responds the futa. "I love digesting helpless sluts into the seed they were always meant to be! Alex put me down here as the first ever trap! The final trap! The whole thing wasn't ever meant to be an escape route, you moron! It was a way for you bimbos to get melted down in my balls! I and I... Ungh!"

The futa clutches her cock tightly.

"...I love every minute of it!"

She rubs her dick against your body. You feel the warm, sticky remains of Mai dribble onto your boobs, legs and face. You shiver, and then let out a scream.

"Ha! Oh, don't you worry that fat ass of yours, May! You're not getting churned up just yet! It's usually a few days before that happens... Sometimes weeks."

"Wh...What?" You sob.

"But before then... I like to play a little game with my 'guests'. You can call me Bayonetta, by the way... That was my name before Alex turned me into what I am now..."

You don't respond.

"Anyways... The game works like this... Mai hasn't been completely... Ejected yet... I've still got plenty of her down in my balls... Now, when it's the last girl of the season, I just deposit her into the drain and... well... that's not important. What IS important is that when I have a spare girl, I like to see just how slutty they REALLY are..."

Bayonetta looks at you with a devilish grin.

"I'm feeling really horny... Open up that mouth of yours, May... This won't fit, but if you manage to swallow it all...

...I'll let you out of here."