Seeing my sister-in-law Ann in her one piece bathing suit definitely excited me. Ann is one of my wife's sisters. I had always thought Ann was hot. She was a couple of years older than me and just as tall with dark brown hair and a very sexy well-proportioned body whose best feature was her legs. They were long with the kind of thighs you want to spend time caressing and kissing.
She was divorced and has told me on several occasions that she needed more "fun" in her life. I agreed. Ann could be a bit intense but was fun to be around when she loosened up. We were very close...like best friends more than in-laws so we talked often and told each other things that sometimes we kept between us. I can even remember complaining to her about my married sex life...how I love my wife but she is an in the bedroom, in the dark, missionary position, under the covers, not too loud person. Ann told me how she is the exact opposite. We teased and harmlessly flirted with each other quite often. She lived out of town for most of the time I have known her and would visit mostly on holidays. I'd always try to get her to stay with us so I'd see her more and could maybe catch a glimpse of her in a stage of undress.
Once she accidentally left a pair of very sexy panties at our house. I found them before my wife did and I of course jacked off several times while smelling them. I would wrap them around my cock so that my cock was touching the same place her pussy was but I never came in them so that Ann wouldn't find out. When I knew Ann was going to be in town again, I put the panties somewhere my wife would find them and return them to her. We kept in touch mostly by phone and e-mail. She had recently moved back to town and lived only a few blocks away from us.
We were spending a week at her brother's house and were at a pool party and there was a great deal of family and friends present so I understood why she wore a one-piece when she clearly had the body for a bikini. Girls, even obviously pretty ones always seem to be vain about that sort of thing. I had my digital camera with me and snapped off several pictures of her so I could study her body more in private. God how I wished she had worn a bikini.
The next day was another day to swim but this time it was just the immediate family. Ann came out in a cover-up and when she took it off, she stood there, to my delight, in a pink bikini. I could feel myself actually starting to drool and I was glad I was already in the water as it concealed my massive hard-on. This was as close to naked as I had seen her and it was absolutely maddening. I started flashing back to all the times I had seen her in clothing or poses I thought were sexy and this time definitely took first place. I couldn't help but wish it was night time so I could accidentally rub up against her in the pool without anyone seeing. Wow! We all swam for a while and even my wife noticed me staring at her sister but she laughed it off because she knew how close Ann and I were. However, what my wife didn't know was that my desire to fuck her gorgeous sister had reached its peak here and now.
Later that afternoon, everyone was still swimming and I had to go to the bathroom. After I finished, I started to think about Ann and that bikini. My cock got so hard that I wanted to jack it off right there. But I figured I'd wait until tonight when I could do it for a while and give this fantasy the time it deserved. My plan was to retrieve her bikini bottoms which were sure to have the smell of her pussy all over them and I'd sniff them while jacking off, imagining it was her pussy I was pounding rather than my fist. Then, I would fuck her later that night...in my dreams. I had read a book about directed dreaming and had gotten pretty good at determining what I'd dream about.
In the distance, I heard a door open and someone entering the house. The footsteps sounded like a woman's. As I slowly and quietly walked by the room we were all using as a change room, I saw that the light was on. I entered the room and my heartbeat went into overdrive as I saw Ann...facing away from me and bent at the waist rummaging through her suitcase. Her still slightly damp bikini bottoms were clinging to her and even disappearing between her ass cheeks and I could clearly see the outline of her pussy through them. My cock started to throb in my bathing suit. I could still hear everyone in the water outside. My mind was racing with lust and confusion and through all that I quickly realized that if anything was going to happen between Ann and I, now was the time. Everyone else was busy and we were both almost naked anyway. If we had to, we could stop and re-arrange ourselves quickly. That is of course, if she didn't hit me with her suitcase after I attempted whatever I was going to attempt.
Seeing her in that position, several things came to mind. I could whip out my cock, shove her bikini to the side and slide right into her. But that could hurt her if she wasn't ready. I could get down on my knees and kiss the backs of those amazing thighs all the way up to her pussy and tongue-fuck her until she came. I decided instead to walk up right behind her and ask in a low voice, "lose something"?
She appeared only slightly startled and stood up and faced me. "Nope, found it" she said, showing me a good-sized glass dildo. Then she looked down at my cock, now threatening to rip a hole in my bathing suit, licked her lips and said, "and apparently something else too."
She dropped to her knees and pulled my bathing suit down to my knees and out popped my cock. She ran her fingers along it and brought the dildo up next to it. "I could see how big your cock got staring at me and I was going to use this on myself but now that I have what I really want..." she said before she tossed the dildo over her shoulder into her open suitcase. With that, she slid my cock into her mouth. My head was spinning. She wanted me too? Was I dreaming? Was my incredibly hot sister-in-law having the same lustful thoughts I was? And now we were going to act on our mutual attraction?
She began to suck quickly while she reached inside her bikini bottoms and fingered herself. I leaned up against the wall and enjoyed the best blowjob of my life. The only sounds in the room were the sucking sounds of her mouth on my cock and her pussy on her fingers along with our occasional moans.
She slowed down and then stopped. She stood up and put those pussy-juice covered fingers in my mouth. While I savored the taste of her forbidden fruit, she leaned in close to my ear, licked my ear lobe and whispered, "I'll let you taste from the source another time. But I want that cock inside me so I can cum all over it. Then I want you to cum in me and I will walk around the rest of the day with both our juices inside my pussy."
My wildest dream was about to come true. I really wanted to lick her pussy. To make her buck her hips at my face as she came but I knew time was short so I kicked the door closed and bent Ann over the arm of the couch. I grabbed her bikini bottoms to pull them down and she pushed my hand away, shaking her head with a giggle. Then she pulled her bikini bottoms to the side and exposed her very wet pussy to me. "No time to take things off...just fuck me baby!"
I pushed my cock all the way in her in one thrust. She gasped and threw her head back. "OH MY GOD!" she hissed through clenched teeth, trying to be quiet. I pulled out to the head of my cock and then drove back in again. She felt so incredibly tight. I hoped that after all these years of thinking about her and the incredible tightness of her pussy that I could hold out and make this last. She pulled her firm, round tits out of her bikini top.
"Squeeze my tits while you fuck me baby!" she panted. I had a nice slow steady rhythm going and now I was grabbing my gorgeous sister-in-law's tits. I took turns between rubbing them and squeezing them.
She reached underneath herself, shoved her fingers back inside her now soaked bikini bottoms and started playing with her clit. Now my fucking speed was increasing, she was playing with her clit and I was playing with her tits. She was slamming her ass back on my cock to get it as deep as she could.