The sister-in-law pt. 1

After about a year of this we started getting her high some times. This was a great opening for me, and the X brought it on herself. Here are a few things that happened over the year then I'll get back to the story. She answered the door one day 1/2 asleep and her shirt was almost totally unbuttoned. Her tit was hanging out, so I touched her nipple and said "nice tits". She blushed as she covered up, tell me the X wasn't home. The X sent me to her room once to get a video, and she was sleeping in the nude! She had walked in on the X and I while having sex, so she had seen me naked as well.So, fast forward. She had been smoking up with us for some time. I had just walked there in the rain (thunder storm) to see the X and nobody was home but Tammy. She let me in because I was dripping wet. It was very dark for being day time, and the power was on/off. I took off my wet shirt, shoes and socks. Tammy is in a pair of pink, and white stripped panties, and her old flannel. I ask her if she would like to smoke so we head up to her room. While packing the bowel she leaves the room, and comes back with some beers she took from her dad. So here we are. 1/2 dressed, and fucked up laying around on her bed with the thunder rolling outside, and the room lit by candle. I bring up the issue of her walking in on us (the X and I) having sex. I was telling her that she knew what she was doing when she walked in, and wanted to see. She denied it. I asked her what she saw, and she was saying nothing. well that was such a lie. At this time she is sitting at the end of the bed so I stand up right in front of her, and tell her. "If you want to see it go ahead. I won't tell anyone." As I stroke her hair, she undoes my jeans. I let my pants drop to my knees. At first she is just looking at it, and I tell her she can touch it if she likes. she begins playing with it as it gets hard. She is being very careful. This is a new thing for her, so I take her hand in mine, and show her how to stroke it. After a few minutes of this, and some laughing, and talking I tell her I want to see hers. It took some convincing, but soon enough we were laying down, and playing with each other in a 69. I started licking her pussy and she loved it! she was getting so fucking wet! She was kinda' fumbling around with me. Jerking with some licks and kisses, so I broke from the 69. I propped her legs up and buried my face in her pussy. She was panting heave and saying OMG as she held my head down there. She began to shake, and was grinding hard into my face. I could tell she got off. after that I told her I have to get off now, so I laid back and talked her though how to give a blow job. It didn't take long, and she was sucking like a pro. As I began to cum I gave her a gagging deep throat. After all of this we made out a little, and agreed to keep it a secret from her sister. I couldn't get out of there fast enough that day, but there would be much more to come.