Relax, Grace

"Relax Grace, I was just having some fun, jeez." You say with a smirk. Grace looks at you with a mix between annoyance and amusement.

"You do that one more time and we're through, got it?!" she says, her tone still filled with annoyance. You shrug, a mischievous glint in your eye. "Fine, now can I get back to fucking your back out?"

Grace rolls her eyes, but the smirk on your face convinces her to let you continue. She lets out a small moan as you begin to pump in and out her ass, her body writhing with pleasure. "You know, I think I like it when you do this," she says, her voice barely above a whisper.

You chuckle, "What, did that little incident before turned you on?" You continue to fuck her ass, her body tensing and releasing with each movement. She moans louder as you pick up the pace, your hands moving to her hips to pull her closer to you.

Finally getting all you inches inside of your sister's tight pussy, you begin to get serious. Pulling out, you whispered into her ear. "Hold on to something, because once I'm done you won't be able to walk correctly for a week." You say, sexually nibbling on her ear.

"Fuck, just put it back in!" Yelled Grace. Doing as you said, she tightly grabs on to the bed sheets waiting for you to fuck her senseless with your cock.

You grinned, teasing her pussy the whole time she was talking. "Good girl." Finally, you decide to let her have it and instantly put your entire cock; inches and all inside your sister's tight, wet pussy. Her eyes roll to the back of her head, feeling all of your inches inside of her at once.

As you begin to thrust in and out, Grace's body tightens around you, her moans growing louder and more ****. You can feel her fingers digging into the sheets, her nails scraping against the surface as she comes closer to orgasm. The sensation is overwhelming, and you can feel your own body reacting to the pleasure of it.

Your heart races as you continue to thrust inside of her, your mind focused solely on the feeling of her body against yours. As you could feel her coming closer to an orgasm, Grace's body begins to convulse around you, her muscles tensing and releasing in a rhythmic pattern. Her breathing becomes ragged and shallow, her body shuddering with each powerful pulse.

"Fuck, fuck, fuck fuck FUCK ME!!!" She screams out, before biting down on her pillow to get rid of the noise. Realizing it wouldn't last for long, you turn her around. Facing you directly, before continuing on where you left off.