She tells you to go to her room

"You know sis, we've both been feeling so lonely lately... why don't you come into my room?" your sister says, looking down at you with a hungry look in her eye.

You smile, clapping you hands at the chance to cuddle with your sister again. I must've done a good job blowing her tonight, you think, as you stand up and start walking to your sister's room naked. As you walk, your sister comes up behind you, and you slow down, swaying your hips to show off your great ass. You feel your sister press closer and closer as you walk into her room, teasing her.

As you near the bed you stop suddenly, causing you sister to press into you. You smile, feeling that her dick is hard again. You wiggle your butt into her crotch as you bend over at the waist, pretending to be reaching for something. Reaching for what? Who cares. You don't even make it halfway down before your sister pushes you down onto the bed and starts rubbing her cunt along your pussy, her dick rubbing against the fleshy curve of your ass.

"Oooo, big sis, I didn't know we were getting to this already," you tease her. "Are you finally going to deflower your young, **** but buxom little sister, just turned 18?" you say, throwing your head back melodramatically even as you press back into her, thrusting in rhythm with her already wet snatch.

"You know, I think I am sis, you deserve every bit of it," she says, moving back. You bite your lower lip and pull your ass cheeks apart, knowing what comes next and relaxing just in case she 'misses' by accident.

Your sister plunges her cock into you hard, breaking your virgin hood with one hard push. You gasp at the massive mix of signals that are being sent. Pain, pleasure, and the joy that your sister was your first, like you had always dreamed. Soon, though, she began to pull out before thrusting again, starting a slow rhythm.

You feel her lean over your body, grabbing a hold of your tits using them as hand-hold to fuck you harder. Harder and harder, faster and faster, the rhythm builds, and for a time it peaks as both of you slam into each other in animal need. Nether can keep it up for long, and you feel yourself start a long orgasm as you feel her dick throb faster and faster inside of you.

"CUM INSIDE ME, BIG SIS!" you cry, hoping she would fulfill your lifelong dream.

You don't have to wait long as she thrusts once more fully into you and bursts forth, filling you with her hot cum in stream after hot stream. You hear her moan in pleasure as her balls contract, spewing their seed into you.

Soon you both fall to the bed in each other's arms. As you each float on the afterglow, you wrap the covers around your sister as you press your body into hers and fall asleep.