Turnabout is fair play; he pleases her & she shows him.
I think she loved sucking cock more than anything else. We hardly ever had sex any other part of the day, since we both had very demanding careers and were usually too tired in the evening.
I was pretty sure she was having an affair with a guy she worked with, and at first it bothered me, but I thought what the hell, I had had a couple of affairs myself. Anyway it didn't appear to be too serious or a threat to out marriage-she was probably just sucking his cock and doing the same thing we did, but in the office instead of the bathroom. Like I said, she loved to suck cock, and apparently would climax while doing it. We never talked about sex much, and we had never been very adventurous. She seemed to be satisfied with what we did, but I wasn't; I wanted more but wasn't too sure what I wanted.
One Saturday when Mandy was visiting, showing off her beautiful bikini-clad body in the pool, I decided I would grill some steaks in the evening. After we ate dinner and drank a couple of glasses of wine, we watched TV for a while, and I became very sleepy and decided to go to bed. They said they were going to bed soon. After I slept a couple of hours I awoke and had a huge erection and was horny as hell.
Tracey was soundly asleep beside me, so I went to my study at the opposite end of the house and turned on the TV. I decided to slip a porno tape in the VCR, and took my dick out of my shorts and slowly began stroking it while watching the action on the tape. Then I tucked my dick back in my shorts and went to the kitchen and got a bottle of wine and a glass and went back to the study and resumed stroking while sipping the wine. I was sitting on the small sofa in the study engrossed in the movie and my dick and feeling warm from the wine, when I heard a small voice over my shoulder.
"Uncle Dan, what a naughty boy you are!" I was totally shocked and tried to put my dick back in my shorts, not succeeding because of my fumbling hands and the size of my dick. She said, "Oh, don't do that, leave it out!" and came around the sofa and sat down beside me. She was wearing a very short sheer nightgown with nothing underneath, and I could easily see her round firm breasts bulging underneath it. She put one arm around my shoulders, shoving her breasts a few inches from my face, and reached down with her other hand and grabbed my cock. She slowly stroked it up and down and said, "Damn, Aunt Tracey said you were really hung...I always wanted to see for myself."
I could barely talk I was so nervous, but managed to say, "Mandy, we shouldn't be doing this. You're my niece!"
She said, "Oh, phooey, so what, besides I'm just your niece by marriage. You know what? I've always thought you were sexy as hell, and I've seen the bulge in your pants while you were watching me in the pool. Just relax!" Then she reached over and planted a big kiss on me, sticking her tongue deep in my mouth. After kissing passionately for a while I started reciprocating with my tongue. I couldn't help it! She then started tonguing and nibbling on my ear, sending shivers through my body.
I reached over with my hand and started caressing her back through the nightie and my hand wandered down to her incredibly firm round smooth ass and I gently squeezed one of her buns. She then bounced up and took off her nightie and reached down and pulled off my shorts. "There!" she said, and knelt down between my legs and put my cock in her mouth, tonguing the head. I thought I'd died and gone to heaven! She held my dick with one hand and started massaging her clit with the other, moaning as she did it. She then bounced up and told me to lie down on the sofa and she straddled my face and bent over and resumed sucking my cock.
I was confronted by a beautiful pink pussy with soft dark blonde hair.