"step Mom and step dad are away for the weekend. What do you want to do?" You ask your step-sister. You figure she will want to throw a party or maybe have a friend over for the night. Do nineteen year old girls still do sleepovers? You just hope she doesn't expect you to buy them beer. You're old enough to but you don't want to be responsible for her and her friends getting . "Actually, I thought we could fuck," she said. "Excuse me," You say, sure you've misheard her. "I said I'm horny and I wanna fuck you," she said getting up from the couch and coming to stand in front of you. She reaches out her hand and cups your cock. You hate to admit that it is hard but it is. She grabs your hand and slides it down the front of her yoga pants. The pants are soft but not nearly as soft as the freshly shaved pussy your hand finds. You rub a thumb over the little nub of her clit and then push a finger inside. God, she is already hot and wet. "I've been waiting for this day for a long time," she said as if she had read your mind. She undoes the button of your pants and pushes them off of your hips along with your boxer briefs. You are standing naked and hard in front of her. You pull off your shirt to save her the trouble since you are a bit taller than her. She pushes her tight yoga pants down her hips. She is wearing a thong underneath. "You going to take that off?" you ask. You have never felt so horny in your life. "Nope," she says though she does pull her shirt over her head to reveal her firm round breasts. She hadn't bothered with a bra. "We going back to your room?" you ask. You take your cock in your hand and start to pump it because it is aching with desire. You need to be inside of her soon otherwise your balls might just explode. "Nope," she says with a wicked grin. She goes to the side of the couch and leans over the armrest spreading her legs slightly apart. "Oh, is that how you want it?" you ask. You hope your voice sounds teasing instead of desperate. "That's how I want to be fucked," she says looking over her shoulder at you with a smile. You stand behind her and push the thong to the side so you can slide your cock into her tight cunt. She is hot and soaked making you gasp. You grab her by the hips, enjoying the view of her bouncing ass cheeks as she pushes back against you to meet your thrusts. You also have a clear view of her ass. If you ever do this again you might ask if you can fuck her there. You use her hips to pull her back against you as you thrust into her with all your might. She moans and her hands dig into the couch making you plough her even harder. "I'm cumming," she says and you can feel her body trembling and her cunt clamping down on your rock hard dick. It throws you over the edge and you feel your cock start to pulse as you fill her tight, bald, wet cunt with your load of hot cum. Shooting it up as far as you can , filling her to the brim, filling the cunt of your step-sister
