Whoever cums first loses!

Katie gets in position on the machine. There are two chairs. Hers has a dildo that inserts into her pussy and your chair has a device that you place your cock in and it jerks you off. Alina helps you get in and places your hard cock inside the device. "Just hold it in for me okay?" Alina whispers to you as she places your cock inside the device and walks away to stand in front of both of you and watch the game.

Katie moans a little as the dildo is inserted into her. The device starts up and the dildo starts being thrust in and out of her wet pussy. Your device tightens around your cock and begins running up and down your shaft, mimicking a hand jerking you off. You moan with pleasure as its the only form of pleasure you've felt for the past few weeks. You're super built up and filled with cum. This isn't going to be easy...

Katie moans and starts playing with her tits. She rubs her nipples and pinches them as she turns and locks eyes with you. "How you doing over there boy? Getting ready to lose to me?"

You look back down at your throbbing cock. A bead of precum starts to form at the tip of your dick. "Fuck this isn't good...oh fuck."

Katie laughs at you. "Oh my god are you really going to cum soon?" She sits herself up a bit to get a better look at your dick getting jerked off. "Oh fuck he has precum dripping down already! Alina look!" Alina looks at your throbbing dick and bites her bottom lip and then looks at you worriedly.

"Alina...I can't take much more!" You start to strain and squirm in your chair but you're locked in so you can't get free.

"Come on you poor baby just cum! Cum for me!" Katie is getting a kick out of this. Even though she's turned on right now, it's nowhere near the level you're at.

You groan more as you get closer and closer to cumming. Katie giggles more. "You know I can get fucked like this for hours and not cum...think you can last that long?" You moan as you get closer. "What's that? Is someone not able to hold it in much longer?"

Your balls start to surge with pressure as your cum is getting ready to spurt out any minute now! You can't do anything! "Oh fuuuuck, Oh no please make it stop!"

A small spiked clamp trap comes up out of the chair where your balls are sitting. Katie gasps. "Oh god you're getting close! The machine can tell when you're about to pop! You're going to lose those nuts aren't you?" She laughs as she watches with her mouth open staring at your swelling balls.

You start sweating as your cock gets ready to burst! Weeks of cum just ready to release after you've been teased constantly by Alina.

Katie keeps teasing you. "Cum! Just cum! You're not going to beat me and you know it. Just let alllll that cum flowwww out for me." She looks at you mischeviously as you stare back at her. Suddenly you feel it happen!

Cum starts splashing from your cock in a fountain and you scream in pleasure as weeks of pressure are finally released. Alina looks at the spectacle and covers her mouth with her hand as her eyes go wide.

*SNAP* you look down with horror and see that the trap has activated! It clamps down, penetrating your testicles with spikes. You feel the most pain you've ever experienced in your life as you hear Katie laughing at you.

You convulse in pain a few time as the machine stops and releases you. The trap lets go and you slump out of your chair onto the ground passed out for the pain. Your nuts are mangled and crushed from the trap.

The last thing you see from your blurred vision before you pass out is Alina cheering for Katie beating you.

YOU LOSE