You will let Dale fuck you, but not because you want to.

You sense that Dale could sniff out a flattering lie, and as you look deep inside yourself, you can say with 100% certainty that you probably don't actually want to fuck Dale...maybe. At any rate, you do know you wouldn't be in this situation if it weren't for Emma, even if you are enjoying it more than you care to admit. So it's with iron clad confidence, more or less, that you say, "No offense, Dale, but I'm just not into dudes. I'm used to my sister selling me out since way back in our first day in kindergarten, so if I have to trade one 'favor' for another, I can promise you'll have fun, even if I don't."

Emma looks at you like you just slapped her, but you can't imagine why. It's not like it's news to her that she ditched you on the first day of school to make friends with your bully. Dale, on the hand, takes the news better than you expected. He slides his hand lower to squeeze your plump ass and brings his mouth kissably close to yours and whispers, "Good. Because I want to be the one to turn you gay."

Before you can react, he closes his lips around yours and pulls you onto his lap. Your head spins as it tries to process what is happening, and hopelessly failing. He said he would turn you gay...and you aren't feeling 100% straight with his tongue down your throat and his bulge sliding between your cheeks...his lips are softer than you would expect...his breath smells like weed, but that just makes you feel more high...you wonder if it's gayer to suck his tongue than it was to suck a cock, and which gets you hotter...you wonder if it's the molly making you grind against his lap, or the weed making you wrap your tongue around his, but it's definitely the panties making you whimper like a girl as he pulls his prick out and slides it against your hungry hole.

"Fuck this is so hot. Can I like, help you make him gay!" You hear Emma coo cruelly and Dale must give her some kind of signal because her tongue is running up his shaft and down your ass to lube you for his girthy, veiny prick to slide in. Then, when you are so horny you can't think even 1% straight, she swaps her tongue for his spongy cockhead and swaps his tongue for hers. You make out with your twisted twin sister as you feel a flesh and blood REAL man's cock stretch both your asshole and your definition of 'straight'. You tell yourself it can't be gay to have a cock plunging deep in your ass if a hot girl's tongue is plunging down your throat at the same time.

When Dale's dick finally bottoms out deep inside you, your definition of heterosexual expands to include spurting in your sister's panties with a cock buried balls deep inside your ass as your mouth is shared by Emma and Dale. You tell yourself that you must be straight, because Emma is a slightly better kisser than Dale, but you also have to admit that he beats her hands down in the cock department. When he starts sloooowly lifting you up his thick, veiny prick and letting gravity pull you back down, you can't help but clench your hungry hole around his man meat and push down to get him deeper and harder and faster inside you.

"Fuck! NNH Shit! NNG Damn! Your AAH ass is so NNNF fucking tite! It's gonna NNNNNGGH!" Too soon Dale floods your taut, tender tissue with shotgun blasts of baby batter. You toss your head back and moan incoherently as Dale and your sister suck on your neck and extend the biggest, brutalest, blissiest orgasm of your life to the point that it feels like your body is covered inside and out with cumming clits. The druggy deadbeat deep dicks you until every last spurt is shot deep inside you, and again as if reading an unseen signal, Emma pulls you off his prick so she can eat out every last drop from your freshly fucked ass.

"Oh SLURP fuuuuck! That MMPH feels SUCK sooooo...OOOOOMMPH SHLPP LICK" Your moans are muffled by Dale's cock as you clean your juices off his still dripping dick with hungry, sucking kisses and loving licks. The moment you have him spit shined, Emma pulls you into another kiss, sharing his scrumptious seed with you. For a miraculous moment, you don't worry a bit what this makes you, what it means for your relationships or reputation, what your horrid history or fearful future holds...you just love them both in a way that is base and bestial and sublime and sacred. You collapse in a pile of panting flesh and sweat soaked, satiated skin. For what feels like a love filled lifetime, you are proud of sharing such an intensely estatic experience, regardless of how it came about.

Then Dale has to go and ruin it by boasting, "Well, I don't know if I turned you gay, but I definitely turned you bi. Heh. Come on over anytime you need party favors, Ella. I don't mind giving you an excuse to get a fix of your real addiction." He comes across both callous and empathetic, self effacing and self pitying, and for the first time, you see his vulnerability as well as his viciousness. To your horror, you are drawn almost equally to both qualities.

You decide to deal with what to define yourself as later. Why slap a label on yourself now when you could be a completely different person by the end of the night? Or are you the same person, being revealed to yourself, like a flower blooming or an onion awesoming? Or is it the other way around. You come to the sobering realization that you are way too high for introspection and focus on helping Emma pack up a goody bag instead. Everyone, yourself included, seems to be in a much better mood than when you arrived, and you have largely forgotten the earlier unpleasantness with your sister. You are still a little apprehensive about going to a party filled with your biggest bullies and cattiest crushes, but it's like the man said as he fell of the skyscraper, 'So far so good...'

Emma has filled a backpack with enough **** to dose an army and you both blow Dale a kiss goodbye. When you get to her car, the fading light of dusk gives everything a warm, welcoming glow, as if to tell you that everything is going to be all right. Then, the other heel drops as she imparts the final lesson...