You turn the tables and fuck the cum out of Emma.

Even in your wildest dreams you never expected to be in this situation. A beautiful girl grinding on your cock, her bare breasts bouncing and beads of sweat gleaming in the moonlight as they fly off, landing on your moaning lips only to be licked off. You certainly never dreamed your twin sister, Emma, would be the one trying desperately to drain your balls, but with your Mistress' no cumming order in effect, your waking wet dream is turning into a lusty living nightmare.

"Please AH cum for MOAN me! I'm on UNH the PANT pill, so SLURP we won't MMPH have chinless LICK children!" Emma coos and kisses, crushing her breasts against your chest as she rolls her hips on your lap, milking your meager member without pulling off of it. Her wanton, whorish whimpers and mewling moans have you on the razor's edge of rueful release. It's a uniquely intense pleasure feeling her cunt suck your cock with the neediness of a newborn calf, but having to clench down ever muscle in your body to the breaking point to avoid cumming hurts worse than you could ever have imagined.

You get a stupid, psychotic idea, that makes a senseless kind of sense in your foggy state. What if her yearning yelps and slutty snorts aren't just play acting to steal your cum? Her pussy certainly feels wet enough sliding slippery around your shaft, and her kisses have a starving quality to them that sure tastes genuine. You decide to risk everything on the hunch that your slutty sister is just as turned on as she sounds, maybe more.

You catch her off balance, and flipping her over so that she lands on her back, you plunge back into her, lifting one leg up over your shoulder so that you can grind your groin against her clit, scissoring her and fucking her at the same time. "Wait AAH! That's NNF not OOH fair!" You ignore her pleas, pounding down into her and fucking her shallow but sticky. You can feel her clenching even tighter on your cock, like she's trying to keep it for herself, and you bite and suck on her slender ankle and curvy calf to keep yourself from cumming.

"Go on, NNGH slut. Do the OOH one thing GRUNT you're NNGH good at. GROAN Cum." You are surprised by the gravely growl to your voice. You just wanted to tap into the kind of sick shit that you want to hear when you're getting fucked, but there is a very real savageness to your tone that alarms and arouses you...and you're not alone. Emma makes soft, strangled sobs and bucks her hips wildly against yours. Her eyes go wide and wild and its like she's forgotten this was just supposed to be a ploy to milk your cum so you would get punished.

"Elliot! EEE AAAAH {sissy!} OOOH WHIMPER Whoever! I'm UH UNH UNGH gonna...GUH BUH UH gonna...EEEEEEEEEEEEEEEE!" Emma sprays your sheets and slides against you in slippery spasms. In this magic moment, thrashing and moaning in the moonlight, she is the most stunning creature you have ever seen. The fact that she is your wicked, warped mirror image only makes it that much more tempting to paint her with your seed.

You feel your cum coursing through your veins, a torrential tide of bliss held back by weak wet tissue...but somehow, with a strength you would have sworn you didn't possess, you pull out of her pussy and back away panting, "Guh get out. And AH don't try that NNGH shit again or I'll make you sorry."

Emma's eyes are still cloudy from her climax, but your guttural growl brings her back to reality. Suddenly shy and sulking, she takes your sopping wet sheet with her, draped around her like a second skin you wish you could suck clean. You don't dare meet her scornful, wet eyes, lest you are tempted to really give her something to cry about. She steps around your door, which you only now notice has somehow come free from it's hinges and goes back to her room. You take a deep breath and slowly count to ten...and then to twenty, and by the time you reach three hundred you think you are calm enough for a cold shower.

As you pass Emma's room, you could swear you hear sobs coming from under her door, but you suspect it's more likely moans as she fingers or toys herself to another screaming orgasm. After all, if you had already cum, you'd spend the rest of the night making the most of it before meeting your fate in the morning. You drown her out with the ice cold spray of the shower, which helps relieve some, but not all of the pent up pressure.

Still, there is a special satisfaction knowing you beat your slutty sister at her own game. You almost wish you'd known you could fuck the cum out of a girl before you knew how good it felt getting the cum fucked out of you, but now that the genie is out of the bottle, you know you won't want to give up either, but you'll probably pick getting fucked in a pinch. You finish the shower still feeling dirty, but after your day, dirty is an improvement. You climb into bed and fall into a deep sleep, dreaming of how your Mistress will reward you...and punish Emma!