Make your sister cum her brains out.

Your legs are bound and your hot hole is helpless to resist the gargantuan girthy dildo pounding your ass with heavy hung-like-a-horsepower and pneumatic precision, but your hands are free and so are your lips. You pull Emma's face close and claim her mouth with yours, pinning her tongue down and sliding yours in and out of her mouth in rhythm with the fuckstick filling her ass. She moans, "No MMPH fair! That's SHHPP cheEEEEEEEE!" But your kisses and her climax silence her protestations.

"Hmmm. Going to make sure your sister loses and hoping to win by default? How utterly vile. I love it." Cindi strokes her strap on and waits, wet and wanting to see who can regain control of their body first, and how far you will sink to come out on top.

It's not that you want to make Emma a braindead bimbo. You were just starting to like her again. If you'd known sharing a double ended dildo was all it would take to bring you together again, you would have done it years ago. Then again, who's fault was it that you drifted apart in the first place? She was the one that decided to ditch you in kindergarten the first time a bully called you a sissy. She was the one that abandoned you and made friends with all your bullies. The more you think of it, the more you realize she deserves to cum her bimbo brains out and you deserve to be Cindi's favorite ****.

You slide your hand down between Emma's legs and run your slender fingers across her sopping slit. She moans and mewls in your mouth and you slide your fingers inside her pussy and you rub your thumb against her clit. She humps your hand and gushes all over you as she sucks on your tongue and bounces on her anal intruder. You are astounded by how shamelessly slutty your sister is acting and it is beginning to make you lose control too. You feel another savage sissygasm roar through you and you break the kiss and pull your hand away to flail and squeal like a stuck pig.

Emma seizes upon your moment of weakness, reaching out to pinch and twist and tease your achingly hard nipples and shove her tongue down your throat. You try to shove her away, but she's always been stronger than you, and your body is all too eager to submit to her hands and mouth. Your ass clenches around the rubber cock jack hammering your jizz button makes you spurt and spasm inside your rubber suit. You are so used to just giving in at the first sign of conflict and your body is only to happy to betray you and shoot your brains out through your clit.

"You stupid SHLLP slut! We could OOH have won KISS together! But you AAAH had to cheat! Now NNH I'm gonna MOAN make you SUCK cum until it hurts, then I'm NNGH going to make you UH UH cum LICK harder!" Emma taunts you between kisses and too late you realize how flawed and futile your plan was. Your trampy twin's sluttiness isn't a handicap in this contest of climaxes, it's a hand up. She not only knows all the best buttons to push, and just how hard and fast to push them, she also has extensive experience with hedonistic excess you didn't even dare dream of a day ago. You're doomed...

"Puh PANTPANT puh pleEEEEEase AH AH AAIEE I'm SNNRT suh SNIFF sorry OOOHGODGODNONNO please YESYESYESRIGHTTHEREHARDERYESSSSSSS stop!" You lose track of how many times massive orgasms melt your mind and batter your body into a sticky, slobbery spurt puddle. Emma's eyes bore into your lust lost gaze, deep enough to find the scrap of sanity left in your skull, so you can see her disgust and disappointment. You are so far gone down your shamegasm spiral that it only turns you on more.

"Pathetic. And I had such high hopes for this one too. Unfortunately, she's just another spineless, selfish slut, and they're a dime a dozen and overpriced at that. Let's get you down, Emma, I'll make this up to you while we watch Ella get fucked into a cum coma on the security cameras. We'll untie her in the morning...if we remember." You barely register Cindi's judgement come down. You are more worried about losing your playmate as Emma is released from...The Mangler and led upstairs by Cindi. You spend a wistful, woeful moment wishing you were the one being held up by your crush's strong arms, but then another barrage of atomerotic bombs blast you brainless, and you don't worry about anything....

....