On her back

“How about… mmm… you each get on top of me and fill my wet pussy with cum?”

Well, Drew couldn't well refuse such a request! But that didn’t mean he couldn’t tease her first. “Are you sure you can handle that, sis?” Drew replied with a smirk. “Mmm, you better believe it, bro. Oohhh! Mmm, you really like.. mmm… like that idea, don’t you! Well let’s get turned ar-“

Their dad apparently wasn’t quite ready to change yet, as he grabbed her head and started fucking her face hard. Tanya moaned deeply around his cock, and Drew decided he might as well enjoy a bit more ass and started fucking her hard and deep. Without warning Tanya’s ass clamped down on his cock and he just barely kept from cumming as she convulsed a little and moaned loudly, apparently cumming at the rough treatment. Once she stopped their dad released her head and she released his cock and laid her head on his leg, breathing heavily. After a moment, she spoke.

“Oh my god, you two, that was amazing… I don’t have either of you on top of me yet, though!” Their dad growled at this and pulled her off of Drew’s cock and pushed her onto the carpet on her back. Tanya squealed happily at this and then looked at their dad with a mock innocent look.

“Do you like this too, daddy? You like treating your daughter like the little slut she is? You want your cock in her wet incestuous pussy, daddy?

This was apparently too much for their dad, who lunged on top of her and filled her in a stroke.

“Oh god yes daddy! Oh fuck yes, fuck your little girl! Mmmmm, your big cock feels so good in me, daddy! Oh yes, fuck fuck fuck yes treat me like the little slut I am daddy! Oh god yes I’m cumming again, daddy! Make your little slut daughter cum, daddy!”

Their dad groaned at this and started fucking her even harder as Tanya moaned loudly in orgasm. As she came down from her high he slowed down a little but kept thrusting hard. Tanya moaned in appreciation. “Mmmm, that’s right daddy. Pound me nice and deep. Are you close to cumming, daddy?”

“Yes my little girl. Is your pussy ready for your daddy’s cum, you little slut?” Drew was a little taken aback by this. Their dad was way more into this than he expected! His cock was harder than it had ever been watching this incredibly sexy **** scene playing out in front of him.

“Yes, yes daddy! Fill my slutty pussy with your daddy cum! Oh, I feel it coming, daddy, Oh fuck yes!” “Oh god your pussy is so good, I’m going to fill it up you little slut, here it comes oh fuck FUCK!”

They both groaned in unison as their dad pumped cum into her pussy and then collapsed together. Tanya moaned again as he slipped out of her and she scooped up a little cum that dripped out of her pussy to taste it.

“Mmm, thank you so much daddy, that was wonderful. You ready now, bro?”

Drew looked at this incredible sight and smiled, it was better than he’s ever imagined. He got down on all fours on top of her and with his dick just outside her wet pussy, he kissed his sister hard on this lips, tasting a little of their dad’s cum still there. Tanya moaned into his mouth as their tongues wrestled.

“Ooh, apparently you are, bro. Come on, get your sloppy seconds from your slutty sister.. OH!”

She cried out a little as he plunged deeply into her, then groaned as he started pumping hard. He didn’t think he would last long after fucking her earlier and then watching her and their dad, but he still wanted to make it good, and make her cum. That triggered a thought for a new command. He whispered in her ear as he fucked her hard.

“You’re such a little **** slut you’ll cum whenever any relative cums in or on you, won’t you?”

“Oh god yes, bro. I love your cum that much. Mmm, give it to me, bro, give me your **** cum in my slutty pussy. Oh fuck yes fuck me hard, fill me up, let me feel my dad and my brother’s cum in my slutty little pussy. Oh fuck, are you getting close, bro? Oh fuck you are yesssfuck!”

Drew was getting close so he started fucking her even harder and, though he wasn’t entirely sure it would go over well, he bit her neck hard. Apparently it did, because that was enough to trigger her to cum hard on his cock. A few more thrusts and he started cumming, too, making her cum again after that command.

“Oh fuck yes mmm oh I’m cumming bro, you’re making you little sister cu-OH FUCK I’M CUMMING AGAIN MMMMMMMMMmmmmmmmmmmmm… oh. Oh my bro.”

Drew almost collapsed on Tanya after his orgasm, and she looked at him with lusty eyes after she rode out the rest of her double orgasm. She sighed as he pulled his deflated dick from her well-used pussy, Drew’s and their father’s mixed cum dripping out after it.

“Man, Drew, that was incredible. We’ll have to do it again sometime soon. And thank you so much daddy, you were wonderful.”

Drew got up, and the three of them were quiet for a while as they recovered, though Tanya made a lusty sound once in a while as she ate up more cum. Then their dad helped his naked, well-fucked daughter up, and kissed Tanya for a long moment despite the cum on her lips. “Well, I can’t say I know exactly what got into us, but damn that was good. Okay, kids, go get cleaned up before your mom gets home. I don’t know how you plan to convince her to join us, Tanya, but I can’t say I’m not excited for the prospect. But let’s leave that for later and not let her find us like this. She’ll be back soon.”