A few days later I went to my room and found a tape on my bed. I put it in to watch, expecting to see myself with that chick Amber, but it was Mary in her room, naked on her bed with her legs spread, rubbing her pussy. She was staring into the camera like she was looking right at me, and biting her lower lip. The tv next to her bed was on and the image on the screen was me with Amber on my lap. Mary's sweet pussy glistened with moisture and barely had a few wisps of hair. It took only a few seconds to make me hard and I had to get my dick out to jerk off.
In the video she was moaning over and over, matching Amber's low moans. I rubbed my dick with the same tempo. She was very close to cumming and I was right there with her, just about to shoot when I realized she might be watching me jerk off to the video of her jerking off. I looked at the poster where she would be and came so hard it sprayed on the tv screen, right on the image of her naked body.
I heard a gasp from behind the poster and ran to the closet door with my dick hanging out. I yanked the door open and Mary was right there on the floor, pulling down her short skirt. My dick was level with her eyes and she stared straight at it, but only for a second before she stumbled back into her room.
That was the end of things. The shock must have been too much for her. She was never behind the poster again, and I checked several times. Jerking off just wasn't the same without Mary to watch. I gave up on any idea of what might happen between me and my sister. She avoided looking at me whenever we were in the same room. It didn't matter, though. She was practically still just a kid. What did I need a kid for when I had girls my own age?
I started going out with Amber. It wasn't anything special, like we were boyfriend and girlfriend. We just saw each other once in a while and had sex. Mostly it was when she was horny and just wanted to get laid. Being her fuck buddy didn't bother me. I knew why she wanted me, and it wasn't for charity.
She must have told those other girls because I saw them once in a while, too. Either I would ask them out or they would ask me out. I had a pool of girls, Amber, Bridget, Chloe and Darla. More than once I found myself with two of them on the same night, like the other day with Chloe and Darla.
That morning I had asked Amber if she was busy that night. It had been over a week without any action for me and I was ready to tear something apart.
"I got a date with a guy. I think it's pretty serious. If it doesn't work out you can do me next week," she said.
I couldn't find Bridget anywhere, but Chloe found me at lunch.
"Are you doing anything tonight?" she said.
"Am I doing anything or anyone?"
She laughed and touched my arm. "If you're not doing one of the other girls, you wanna come over and see me tonight?"
"Sure. What time?" I said.
"My parents are going out. We should have the house to ourselves for a couple of hours. That should be plenty of time."
"I'll see if I can fit it in," I said.
Her hand moved down to the front of my jeans and rubbed the bulge where my dick was swelling up.
"I'm sure it'll fit," she said with a playful kind of sly smile.
It was just a couple of hours later, between classes, when Darla found me at my locker.
"I just had a fight with my boyfriend. I wanna jump you right now," she said.
"You just wanna fuck me because you're mad and wanna get back at your boyfriend."
"So what?"
"Maybe I don't wanna fuck you when you're pissed off because you're not much fun."
"You're just an asshole," she said and crossed her arms and looked angry, but she didn't leave. "So are you going to do it with me?"
"I'd love to but I gotta get to my next class."
"What are you doing tonight?"
"Chloe's parents are going out, so I'm going over to do her."
"That shouldn't take too long. What about when you're done with her?" Darla said.