Last spring I went on vacation with my extended family. We rented a house on the beach for a week. We went to an amusement park one day and to an aquarium another, but mostly relaxed around the house and beach. My cousin, who is two years older than me, has brown hair, nice boobs and is a bit overweight. She is very pretty and is a virgin. Emma had recently lost a few pounds and was proud of her new look so when we went to the water park she wore a new bikini.
I never thought of her in any sexual way at all before this day. I found myself checking out her round ass and plump tits whenever I thought I could get away with it. A few times that day I found it hard to hide my erection. It was a mental battle. When we got back to the beach house Emma went out to sunbathe on the beach. I couldn't stay away from her. I went out and lay beside her. I had to lay face down to hide my swollen cock. I couldn't keep my eyes off of her milky skin that had been hidden all these years.
Finally night time came and we all retired to our rooms. In the middle of the night I woke up and went to the bathroom to piss. On the way back to my room I noticed Emma's door partly open. My mind instantly went back to the images of the day. I slowly walked over to the door and listened. All I heard was heavy breathing. I opened the door and entered the room. There she lay asleep,on her back, on top of the blankets. She wore a tank top, that clung to her body, and a pair of light blue panties. I was instantly aroused. I dropped to the floor and nervously crawled over to the side of the bed. The moonlight shone in the window and illuminated her beautifully. I didn't dare move for several minutes. I just sat there watching her sleep. Her c-cup tits rose and fell with every breath she took. I pulled out my cock and began slowly stroking it. I leaned over her to get a close look at her body. Her nipples were poking her tank top out as her chest heaved. I imagined pulling her breasts out, but knew it would waken her so I imaginged her naked tits as I jerked off. I imagined taking one of her nipples in my mouth as I groped her other breast. I moved down her body. She had a slight camel toe showing in the moonlight. Her dark pubes were peeking out from the sides of her panties. I imagined pulling her panties to the side and burying my face in her virgin pussy. I started to lean over to sniff her pussy, but couldn't without supporting myself on the bed. I didn't dare touch anything so I just stared at her as I pumped my cock. My mind went wild picturing her naked blowing me, fucking me and fingering herself. I finally came, shooting my load on the floor next to my sleeping cousin. I cleaned up and went back to bed.
The next day I felt a bit guilty and felt like somehow she knew what I did although she acted normal. She came out of the bathroom, after taking a shower, wearing a t-shirt and shorts. It was obvious she had no bra on. My eyes were glued to her tits. She bent over and I looked down her shirt. I saw straight down to her belly button. Her hanging boobs and puffy nipples gave me another hard-on. I went to my room and had another solo session thanks to my unsuspecting cousin.