When they first started going out I didn't give much thought to my son's girlfriend. Before he dated her, he seemed to be with a new girl every other week so I had never bothered to get to know any of them well. Then I noticed the same one over at the house several weeks in a row and by the time I realized she was going to become a somewhat permanent fixture in our house for the immediate future it was a little late to formerly introduce myself. I figured she'd eventually disappear like the rest so I was content to leave it at that.
She was pretty enough, a fact that as a widower I didn't fail to notice, and she was always polite when she was over but for several months I never knew what kind of personality she had. She was often over when I got home from work but usually left soon after. I assumed they were having sex but they were good enough not to do it when I was home. Both of them were eighteen so I didn't worry about having to deal with her angry parents even though they were both in their senior year of high school.
Then one night I came home and didn't receive the usual welcome home greeting. I was about to call out to my son when I heard a female groan come from upstairs. I'm not sure why I did it, maybe because I hadn't had sex in a couple of months, but I crept upstairs and put my ear to my son's door. The unmistakable sounds of sex met my ear and my cock got hard in my pants. I slowly and quietly cracked the door open.
She was riding on top of him with her great looking ass rising and falling in front of me. My cock stiffened even more and I tried to quiet its silent rage by squeezing it through my pants. The smooth skin on her back looked so inviting my hands itched to touch it. I hadn't had a woman ride me with the passion she rode him since I was a much younger man.
My son said something I couldn't understand and she quickly hopped off his lap and swallowed his cock. The way she choked and drooled on his cock made my own strain in my pants. I didn't wait for them to finish but closed the door quietly and then made my way to my own room to jack off imagining it was my cock she was slobbering over.
I became a little obsessed with her after that. The one good thing that came from my obsession was that I got to know her a lot better. She was a very intelligent young woman and I started kidding her about hanging out with my good-for-nothing son. My son was in actuality a really good kid but compared to her he was average. I started inviting her to stay for dinner and asked her about her schoolwork more than I asked my son.
I would try not to stare at her but it was difficult. Her breasts were large but without a bit of sag in her youth, her waist was nice and tight, and her ass...! Her ass was magnificent, like two perfect round globes sitting on top of two silky thighs. I often found myself standing there staring at her backside when neither of them was paying attention. I realized it was inappropriate to lust after my son's girlfriend but at the same time knew that if I ever got the chance I'd be between her smooth thighs in a heartbeat.
Both of them were planning on going to college but different ones. My son, Danny, got a scholarship to UCLA but his girlfriend, Jessica, was going to Boston College. I hadn't pried into their future relationship plans but I knew even if they tried it wouldn't last that long of a distance.
I let Danny throw a party at our house for graduation. We have a pool and a hot tub and the weather is always warm in June so our house seemed like the perfect venue. I had calls from several parents wanting to make sure I would be there to make sure it didn't get too wild. I assured them I would be; there was no way I was going to miss out on a bunch of eighteen year old girls in bikinis but I didn't mention that. I let Danny and Jessica plan the whole thing but I did make a store run for them after they gave me a list.
Their graduation ceremony was beautiful. I sat next to Jessica's parents; I had gotten to know them quite well also. They thanked me for agreeing to host the party and made a half-hearted attempt to chaperone with me but I assured them I'd be okay keeping an eye on the kids by myself. The kids took off for home before I did and by the time I arrived there were already several new graduates out back in the pool.
I stopped dead in my tracks when I entered my kitchen. Jessica was in there alone preparing a vegetable tray and wearing a bikini. It wasn't a particularly skimpy one but it was the closest I'd come to seeing her nude since that fateful night earlier in the year. I'm not sure how long I just stood there staring at her perfect ass in her tightly clinging bikini bottoms but I didn't move until she turned around.
"Daddy!" she cried startled. She had started calling me daddy when I had started taking an interest in her. "You startled me. I didn't hear you come in." I barely heard what she said; I was too distracted by her tits bouncing suggestively in her bikini top.
"I'm sorry, Jess," I said apologetically. "I wasn't trying to be quiet. I thought I made plenty of noise."
"Well, I heard you come in the house," she amended, "but I didn't hear you come in the kitchen. I guess I assumed you would head upstairs to change," she said getting more food out of the fridge.
"Changed?" I asked confused.
"Yeah," she said. "You know, into a swimsuit. You are joining us outside aren't you, Daddy?"
"I hadn't given it much thought," I confessed. "I really just planned on sitting in here, drinking beer, and watching TV."
"No, Daddy," she said slapping her hand down on the counter. "This is one of the last nights you get to spend time with Danny and me before we head off to college. And who knows what will happen after that. I want you to come outside and swim with us."
She had never taken that tone with me but I had seen her take it with Danny and knew that arguing with her would be futile. Besides, now that I was looking at her in her bikini I wanted to see more so I nodded my head. "All right, all right, I'll join you outside."
I guess my eyes lingered on her chest a little too long though because she looked down at it too. "Did I spill dip or something?" she asked.
"Ah, no," I said.
Her face turned red and she looked up at me quickly, "Men are all the same, even you older ones," she said punching me playfully in the arm. She didn't run or turn away though and since she wasn't angry I decided I was still going to look. I openly ogled her breasts for several minutes and she just stood there letting me have a good look. Her face continued to grow redder and her breathing increased and I realized she wasn't blushing from embarrassment but from excitement.
"Where's the food babe?" my son loudly interrupted as he barged into the kitchen carelessly dripping water from the pool.
"Right here," Jessica said recovering quickly and picking him the tray. "Hurry up and change, Daddy," she called out as she headed out the sliding door with Danny.
My eyes were glued to her ass as she walked away until she disappeared from view. I went upstairs with my cock tenting the front of my pants. Luckily I was the only one in the house so no one saw but I was worried about being outside with not only Jessica to look at but several other hot young women as well. I decided not to take care of my problem; I liked being hard and I wanted to torture myself a bit. I changed into my swimming trunks and headed outside to the pool.
Danny was swimming and horsing around with some of his buddies while Jessica was walking around talking with different groups of her friends. When she saw me she ran over to me with her boobs bouncing with every step. I groaned in frustration as my cock lurched in my swimmers hoping that it wasn't too noticeable. "Daddy!" she squealed delightedly. She grabbed my arm and steered me toward one of our poolside chairs. "I made sure this was saved for you," she said. "I told anyone that tried to sit in it to move their ass."