Let me start by saying I'm 47 and my sister in law Julie is 39. I've always had a thing for her and over the years we've played the usual touch and feel game. In the pool she'd let me grab her tits and she'd give my cock a squeeze. This went on for years. Harmless playing, but it always got me turned on enough so that when I'd fuck my wife after playing I would always picture Julie. One day she came over to help my wife and I do some painting. She's divorced and her only kid is away in college. She planned on staying the weekend so after working we all went out to supper. My wife and Julie got a little hammered so when we got home my wife said good night and just about passed out. I changed into shorts and thought about mounting the wife while she slept but decided to pass. I then went down to the family room grabbed a blanket & laid on the couch. After a couple minutes Julie joined me. She had also changed into a long t-shirt and panties. She got on the couch by my feet and put my legs up on hers. We watched TV and she rubbed my calves. I must have dozed off because I started to feel something rubbing the inside of my thigh then it moved to my balls. I had a hard on and then I felt a hand start stroking it. I opened my eyes to see Julie had removed her panties and with one hand was fingering herself and the other she had on my dick. I told her that she should be careful as I'm about to make a mess. She replaced her hand with her mouth and between sucks told me to go ahead. I shot a major load down her throat. She sucked my cock and licked it clean. After I came I told her I had to repay the favor and with that pushed her down on the couch and dove into her pussy. I licked her cunt and her clit and she had all she could do to keep from screaming. I brought her to a nice big orgasm then I slowly licked her to a couple minor ones. After that I went up to check on my wife and she was sleeping. When I returned Julie again played with my cock till it got hard then she sat on my lap and slowly lowered herself onto me. She pulled her shirt up so I could play with her tits and she slowly rocked herself on my cock. She started to cum again and she clamped her pussy around my cock and reached behind her to fondle my balls. As soon as she touched them I came in her. We rested a bit then we cleaned up and went to bed. We have had a few more times together but I will write about them later.