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"Not for much longer," you growl, seizing Taylor and forcing her to bend over the couch. She really is beautiful, with flawless skin, and big blue eyes which melt the hearts of men and women alike. Sandy hair drapes over her smooth shoulders, drawing your eyes to her perfect hourglass body. As usual, she's dressed revealingly, her short shorts giving you a good look at her toned, gleaming thighs, and even a peek at the edge of her gorgeously rounded butt.

Taylor croaks back a sob. "Why are you doing this?"

You place your hands on her shorts and panties, then grunt, easily shredding the garments with your supernatural strength. "Because I can. Because you're so fucking hot, and you've been teasing me for years. You knew what you were doing. All that time you were almost explicitly inviting me to fuck you, knowing I couldn't because you're my sister. Well, now I don't care about that, and honestly, it's about time you had a good fucking to {if Futa==true}teach you how to really treat your siblings.{else}put you... straight.{endif}"

With that, you plunge into her. She's very tight, squeezing your cock as it enters, and she lets out an involuntary moan at your presence.

"You're wet, sis," you grin. "You were turned on by me fucking our sister, weren't you? {if Futa==true}You were turned on by my big, thick cock going up our sister's cunt. {endif}Not a very good lesbian, are you now?"

Taylor doesn't respond, only whimpering as you push further into her. You feel a hand on your shoulder, and turn to see Amy, naked, a fiery look in her green eyes.

"Let me help you, master," she murmurs, and when you nod she climbs onto the sofa, next to Taylor, and tears the shirt off her to reveal a smooth, muscled back. You run your hands over the frictionless skin with arousal, still slowly making your way into your sister.

Finally, not an inch of your veined length is exposed, and Taylor is still gasping at how incredible she feels, filled up completely by her {if Futa==true}sister{else}brother{endif}.

"How's that, sis?" You flex your cock, and Taylor moans. "Still not sure you want to be with me?{if@ Futa==false} Still not turned on by guys?{endif}"

Taylor shakes her head, biting her lip, her eyes scrunched up.

"Well, we'd better make sure of that, hadn't we?"

You lick your lips, then start pounding your sister with all your strength, sending her body shaking with every thrust. Taylor screams, then sobs.

"Please {if Futa==true}Mikaela{else}Michael{endif}... I'll do anything... I'll - ah! - I'll do all the washing up for you, I'll do your homework, just - ah! - don't do this..." She shudders as, despite her best efforts, she orgasms to your cock.

You lean over, to whisper in her ear. "And why would I take any of that, when I could have you as my ****?"

As you lean back and grab her hips, a fresh wave of tears coming from your sister, you hammer into her even harder, ravaging her tight little pussy. Amy moves round, climbing over Taylor until she is in the right place to shove her pussy in your sister's beautiful face. At first, Taylor is uncooperative, still trying to resist you; however, soon her sobs turn to whimpers. Whimpers turn to gasps. And gasps turn to moans. It took a few minutes, but now Taylor is eagerly eating Amy out, and her back is arched to maximise the stimulation of your plunging shaft. She soon brings Amy to a shuddering orgasm, and turns her attention back to you.

"Fuck me, {if Futa==true}sister{else}brother{endif}, ohhhhh... YESSSSSS, keep fucking my - AH! - hot body, go deeper, go harder, oh ffuuuuuuuuuu..."

Her moans grow louder and louder, as you thunder into her harder and harder, until finally Taylor reaches her second orgasm, screaming and writhing before you. Her already-tight pussy clenches and squeezes with unexpected strength, and you find yourself cumming, spurting a huge load deep into your sister's cunt to the tune of her glorious moans.

As she freezes, you give a few last thrusts for good measure, then pull out, allowing a flood of juices and semen to gush out of her stretched pussy. You're about to program her as your obedient ****, but you have plenty of those, so you come up with another idea.

"You'll no longer be turned on by {if Futa==true}most {endif}girls, Taylor. In fact, the only person who can turn you on is me. Part of you will still think **** is wrong, but that burning desire to be aroused, to find release, will eventually overwhelm your conscious mind. You'll do anything for me, anything at all, just to get off, and even obeying me will turn you on." You also give her the usual physiological improvements, to allow her to withstand your full strength and keep her body eternally perfect, before waking her up.

Taylor shakes and shudders as she's hit by a colossal orgasm, half-crying, half-screaming. When she finally opens her eyes, able to control her body again, she turns over and looks at you uncomprehendingly. "That was... amazing," she exclaims, tits heaving. "What... why did I find that so hot? I thought... my girlfriend... oh my God!" Her jaw drops as she realises what she's done. "You're my {if Futa==true}sister{else}brother{endif}! That... that's disgusting!"

She looks like she's trying to convince herself, but failing miserably, her gaze {if Futa==true}wandering over your gorgeous body, lingering on your irresistible breasts and your huge, throbbing dick{else}locked onto your throbbing dick{endif}. You grin, knowing you're sure to have lots of fun with your sisters soon enough.