My sis is irresistible! Chapter 3!

From where I was in the closet, I could see everything that was going on and it was one of the most erotic things I had ever seen. My sister was laying on her bed with a blindfold covering her eyes. All the while, my new girlfriend, was going to town banging the shit out of her pussy with a strap-on cock. This was one of the best things ever. In the past 24 hours I learned many things, but the most erotic of which had to be the fact that my sister liked to have sex with girls and was apparently great at being the sub in during the play time.

While I was imprisioned in the closet watching the amazing sight of two teen age beauties having some of the most sensual sex I had ever witnessed, I was stroking my cock with a fever. But even that was a difficult thing to do because I didn”t want to waste any of the cum that I was wanting to save for Stephanie. I don”t know where I was going to deposit it, but I knew it would be in or on her. From what I have been told by Carly, her cock sucking skills are amazing, and I can”t wait to find out how amazing they truely were.

I was so lost in thought that I missed Carly nod at me the first time. But I caught it the second time, and knew that it was time to go out and join the fun. Amazingly, I was nervous. what if my sister wasn”t interested in having me join in the fun between her and Carly, or what if she told our Mom what I tried? But now wasn”t the time to worry about that, there would be plenty of time to figure things out after the fun is over.

So I streched my hand out and opened the door. It took me a moment to get my feet out of my shorts. Once I got my feet free I walked over to wear Carly and my sister were. But then something occured to me, I must look retarded, I have my cock sticking out of the fly in my boxers and I still had my shirt on. Carly noticed as I was realizing it and had to struggle not to laugh while continuing to thrust into my sister. Now that I was closer, I could hear just how wet my sister pussy was. Each thrust of the strap-on brought about a squishing noise that did nothing but turn me on more.

I took my shirt and my boxers off and started to stroke my cock some more, slowly milking the precum out of the tip and using it to lubricate my jerking even more. I noticed that Carly was watching my cock in my hand, so I slowly took my other hand and collected some precum on my finger and brought it to my lips and sucked it off. Carly could do nothing but moan and turn to my sister and start to pound into her.

“Tyler, oh my god, you are fucking my pussy better than anyone I have ever fucked! Your cock is reaching new depths, if you keep this up I am going to cum all over you and your cock!” My sister was on the verge of convulsing.

“I am going to give you my cock, and I am not going to stop till you are about to pass out from pleasure, now get your slut ass up and get on your hands and knees.