Cami needs some comfort.

You saw Cami's name on the screen of your phone and answered to the sound of your sister's voice, “What's going on sis?”

“Can you open the door? I want to come in,” she hangs up the phone, and you sigh at the lost masturbation session, but you move over to the door and open it up. You see your sister on the landing standing there in a black shirt which reaches down to her middle thighs. She's rubbing her eyes a little and yawns a bit.

“What's going on sis?” you asked a bit worriedly.

“I can't sleep. For some reason, this new place is making me feel slightly uneasy.”

You decide you want to poke fun at her, “Isn't it a bit childish?”

“I know!” Cami snaps, you hurry out an apology, but Cami stops yours with one of her own, “I apologize, it's not your fault. Look, can I just stay with you a bit before heading off to bed?”

As you look at your sister, she does this puppy dog eye thing. It was something she would always do when she wanted something, and it always worked, and this time was not different. You mentally sigh, it looks like your masturbatory session is going to have to be held off for a bit, “Alright, sis, come on in,” Cami smiles and moves into your room.

“Why didn't you show us this room?” Cami asks while sweeping her eyes across the room.

“Didn't think it was necessary,” you shrug as you move over to the couch and sit down, grabbing the remote, and patting the couch beside you. Your sister surprises you by sitting down on your lap instead, “Cami, what are you doing?”

“I'm sitting on your lap, that's what I'm doing.”

“You need to get off. There is a perfectly good spot right next to me,” you say as the smell of her soaps hit your nostrils.

“I want to sit here,” you mentally sigh at her childishness, but give up trying to get her off. She can be as stubborn as you are. She grabs the remote out of your hands and quickly finds one of her favorite movies.

The two of you watch the movie, well you try to as best you can with her sitting on your lap. You are trying to keep your cock from getting too hard as the heat of her body and soap smells overwhelm you.

Your will is completely broken when Cami lies back onto your chest, and lies her head on your shoulder. You can feel your semi-hard cock soar to full hardness in your shorts, and hear a gasp coming from Cami as she feels it roaring to life.

Turning her head, she looks into your eyes, you can see confusion, lust, and a little bit of hesitation in her brown eyes, “John, why are you hard?” she breaths, her her minty breath hitting your nostrils.

“It's kind of hard (fucking Freudian slips!) when you've been seeing three beautiful women in skimpy work clothing, and on of those women is on my lap.”

She smiles at your words, any bit of hesitation gone, as she crashes her lips on to yours. You bring your hand up to cup her cheek. Your touch inflames her, and she darts her tongue across your lips, you oblige her. As the two of you make out, you feel Cami's hips moving on your lap, up and down along your covered cock. The two of your beak off the kiss for some fresh air, and Cami decides to focus on running her ass along your cock, in order to get the most pleasure out of it.

As the pleasure fills you, your mind comes back to a moment a few years ago, just after Cami's 18th birthday. The two of you had been left alone by your parents, and just like now, although not as quickly, the events escalated to Cami dry humping you while the two of you made out. That time was interrupted by your parents coming home, but this time, there was no stopping the two of you now.

You knew from Cami's heavy breathing and moaning, she was near climax. You held onto all of your willpower in order to make sure you held on.