You might as well admit it, you're fucked.

As tempting as the futile fantasy of turning the tables on your strap on wielding sister is, deep down you know you would just get slapped around for your troubles. Or worse, if you did manage to overpower her, she would go run to 'momsies' and 'dadums' and then you would be fucked even worse. If you are going to be fucked either way, isn't it a little less embarrassing if it's a hot chick doing the fucking?

You crawl over to Emma, aching with need and telling yourself you wouldn't be doing this if she wasn't blackmailing you, and that you wouldn't be loving it so much if it weren't for the molly she fed you with her tongue. You pretend it's just her tongue you're sucking on as you beg, "Please SLURP, please forgive SHLLP me. I'll SUCK do ANYTHING if KISS you don't MOAN tell,"but it gets harder and harder to pretend it's her tongue the further and further you manage to get her sparkly pink strap on down your throat.

"Holy OOH fuck! You are such a MOAN slutty little AAH cocksucker. I'm UH UH UNH actually a little NNNH impressed." Emma delivers her 'compliment' with actual sincerity tinged with desire. You suppose to her, being called a cocksucker is a compliment, but you are more conflicted by the perverse praise. On the one hand, you never thought you'd make a girl moan like this, so lewd and uninhibited, but you also never imagined it would be by sucking her strap.

You spy a second phallus slipping into your sister's slick slit from behind the strap and realize that the further you push your half down your throat, the deeper she gets fucked. In a way, that gives you a kind of permission to really get into it, because it can't be gay to suck a rubber cock if you're pounding a chick with it at the same time, can it? That's what you tell yourself as you push past your gag reflex, past the searing stretching in your throat, past the point of no return when you feel your sister's soft skin press up against your nose. You tell yourself it's the molly, or the fear induced adrenaline cocktail of endorphins and adrenalin, or the lack of oxygen making everything dazed and dreamlike, but you have never been as turned on as you are right now.

You can almost taste how wet Emma is as you stay impaled on her cock. Her moans and whimpers are intoxicating and, drunk with desire, you stretch your tongue out as far as it will go, to slip between the straps of her rubber prick and lap at her luscious labia. Ella grabs your head and bucks her hips in shallow thrusts, mewling and moaning, "Not NNH fair...not OOH fair. You AAAH are NNGH gonna WHIMPER make MOAN me EEEEEEEEEEEEE!" Everything explodes into brilliant sparks of rainbow radiance as Emma pounds your throat and drenches you in her sticky squirts....

....

....

"Wake up, SMOOCH sleepy slut. I can't SLURP have my SSHLP slutty lil' sis'sy making me KISS cum more than SMACK she does. I got a rep to maintain." Emma wakes you with wet, wanting kisses. You come to dizzy and dazed, and still half convinced you're dreaming. Maybe that's why you follow so willingly as she leads you over to her queen sized bed and positions you on your back with your legs pulled behind your head. After all, if it's just a dream, it doesn't count, and it wouldn't be the first wet dream you had about your slutty sister. You never dreamed she would be the one sliding between your legs to fuck you with her hard cock, but beggars can't be choosers.

"Damn, is this what it looks like to fuck me? I never knew what I was missing. I am gonna have to make up for lost time, and there's no time like the PRESENT!" Emma puts the exclamation mark on her sentence by shoving her spit-slicked shaft inside you in one throttling thrust. Your eyes roll back into your head and you see the sparks of light again, only this time they are fireworks, exploding inside you and coating every inch of you in burning bliss. You can't believe how good it feels, like your asshole has been turned into a pussy just as horny and hair trigger as Emma's. Now you know you are dreaming, or ****, or whatever excuse explains how a straight boy like you could spurt in his sister's panties without his cock ever being touched.

"Okay that's OOH one. Fuck, why do AAAH you UNH have NNH to AH AH look MOAN so OOOH sexy WHIMPER when AH NNH OOH you cuUUUUOOOOOOOOH!" Emma continues to pound you, forcing more cum to shoot out of your cock and mix with her own sordid squirts in her panties. You have never cum this hard or for this long, and you can't believe sex could ever feel this good. Your tongue lolls and Emma, still reeling from her latest orgasm, sucks it into her mouth as she keeps pounding your plump ass.

You are past caring about how sick this is or if it makes you a sissy to get the cum fucked out of you by your sister while dressed in her clothes. You only care about sucking her tongue and lips and neck and any other sweet spot you can catch in your hungry mouth. Emma is lost too, she has seemingly forgotten about her little cumpetition with you, which is for the best since you both are cumming too fast and too often to count.

A small part of you wonders if you will regret this when you wake up, or the **** wear off, or whatever other excuse you can come up with falls away. But in this moment, tongues and limbs tangled, bodies crashing into one another violently and lovingly at the same time, your heartbeats pounding in time as you race to the top of fuck mountain together...this moment is perfect, and you wouldn't give it up for anything. Strange as it seems, you don't feel embarrassed or ashamed or any of the things you think you are supposed to feel. You feel sexy and brave and powerful...and loved. You had forgotten that feeling...and you think Emma might have forgotten it too.

"Jinx EEEEEEEE jinx OOOOOOOH sisterfuckingsexysissyslutcocksuckingbuttfuckingbabybitch AAAAAAAAH JIIIIIIIIINX!" Emma rattles off mindlessly as you climax as one again and again until you reach a pinnacle of pure pleasure and brainless bliss...Nirvana. You feel completely obliterated by the size and savage scale of your sissygasm, and it's all you can do to hold your sister tight and hope you make it out the other side in one piece....

....

....

"God, I look sexy when I'm cumatose. Wake up. If you thought that was fun, wait until the molly actually kicks in." Emma looks down at you with a subtle smirk. You are still a little dazed and dreamy with your post coital buzz, but surely she couldn't be telling the truth? The **** haven't kicked in yet? And what does that smile mean? Has she finally warmed up to you? Or is she planning to cast you into Hell?