Lil Sis on the Couch

You can't stop thinking about your little sister Rachel's juicy ass so you make your way back into the living room. Rachel is still flipping through her magazine. You can hear some shitty pop song blasting through her headphones. She still hasn't noticed you yet as you circle around to the front of the couch.

SLAP!
You smack her ass as hard as you can.
"OW! WHAT THE FUCK!?!"
She spins around, headphones flying off her head and sits up on the couch, grabbing her butt.

"Hey sis, how ya been?"
She looks up at you in disgust.
"Fucking asshole, why the fuck did you do that?"

You look down at her, your dick just a few inches from her face.
"Because I wanted to. And now I think I want to do something else."

With one of her hands still trapped underneath her, rubbing her bottom, you grab two handfuls of her long brown hair and start rubbing your dick on her face.
"Aw, fuck, what the, fuck, fuck are you doing?!?", she stutters as your cock and balls are mashed against her lips and nose. She reaches up with her free hand and grabs your wrist, trying to pry herself free from your grasp.
"Ah ah, sis, that's no way to treat your brother. I'm gonna have to stop that."

You push her back on the couch roughly and reach down for the bottom of her shirt. You pull the front of it up over her head while she yelps and thrashes around. You notice, to your delight, she wasn't wearing a bra. But before you can get too engrossed in her breasts, you need to restrain this little minx. Once the shirt is over her head, you push her back down and use the shirt to tie her arms behind her back.
"There we go."
You sit her back up and straddle her waist.
"Damn, you got some nice tits, sis. Not as big as Michelle's but nothing to complain about."

Unable to move anymore, Rachel seems to give in to her fate, although she's still glaring up at you. You reach down between the two of you and fondle her tits. You pinch and twist her nipples, getting another scowl from your tied up sister.
"Aw, don't worry, I'm not here for them. Open up, sis!"
You let go of her tits and grab the back of her head and your cock. You smack her in the mouth a few times with your erection. She closes her eyes and her brow furrows.
"I said open up, bitch, I want inside that hot mouth of yours."
She remains defiant to your demands.
"Fuck you, get the fuck off me!"
You frown down at her.
"Now, now, sis. I'm going to get what I want one way or the other."

You release the back of her head and. instead. pinch shut her nose.
"Open up, NOW!"
Needing to breath, your sister opens her mouth and lets you slip in your raging cock.
"See, that wasn't so hard, was it?"
She glares up at you with fiery eyes. You let go of her nose and watch her nostrils flare as she struggles to breath with a mouth full of cock. You take two handfuls of hair and start fucking her face with reckless abandon.
"UGH, FUCK, THIS IS AMAZING!"
Each time you thrust, you hit the back of her throat, causing your sister to gag a little each time.

GACK, GACK, GACK, GACK
You face-fuck for a few minutes but you really want to fuck that throat. At this angle, however, it's a little difficult. So, you decide to switch things up.
"Alright sis, time for some deepthroat action!"
With that, you climb off your sister for a moment. Then you grab her hair and pull her head down to the couch. You spin her around so her head is dangling off the edge of the couch and her legs are up over the back. She squeals in protest and thrashes about a bit. You climb on top of her and hold her down.
"Ready sis? This is gonna be fun! For me, at least."

You grab her head and line up your cock again. You slip into her mouth and begin thrusting slightly, getting used to the new angle.
"Aw, yeah."
You reach up a little and grab both of her tits. You give them a few good squeezes as you plunge into your sister's mouth. You can feel your balls graze her nose on each stroke.
"Ok, sis, enough warm up, time to fuck that throat of yours."
You let go of her tits and grab both sides of her head, then slam your dick all the way into her throat. She cries out beneath you and spit flies out of her mouth around your cock. You can see yourself bulging in her tight throat.
"AWWWWWWWWWW FUUUUCCCCCKKKKK!"
You pull back, just out of her throat, and your sister gasps for breath underneath you.
"Here we go again, sis!"
You slam your cock back into her throat and then pump slowly back and forth, fucking her throat for all it's worth. The sensation is incredible. You continue to do this, pulling back just enough to let her breathe for a second and then fucking her throat a few strokes. Over and over, spit dripping down your balls into her eyes. You reach back up and grab her tits. You use them for leverage as you thrust into her throat, again and again.
"FUCK SIS, YOUR THROAT, FUCK!"

You feel your orgasm building as your **** your sister's sweet mouth.
"FUCK YEAH, TAKE IT!"
Your cum is boiling in your balls and you are ready to pop!