My 15 year old cousin was sitting next to me on the bus as we rode back from a family gathering. She is pretty, blonde, slender body with small breasts.
It was getting late and there wasn't much noise on the bus. Some people were falling asleep including my cousin. Her head bobbed around as she started to doze. I crossed my arms, slouched in my seat and leaned against the window. After a series of bumps her head ended up on my shoulder and she settled into a deep sleep. Her side was against my side and I moved my hands to adjust support for her head and I felt something soft against the back of my hand. I thought it was her arm for the past ten minutes but now that I moved I realized it was too soft for that. Without thinking I felt the soft object with my hand then realized it was her breast. I got hard immediately. I never thought of my cousin in any sexual way before but I just grabbed her pert little tit. It was a nice tit too. Obviously no bra supporting her young breast and I could feel her puffy nipple through her thin shirt in the few seconds I had it in my hand before I pulled away.
When we got back to the house our family rented for us she went right to bed. I saw her not as my little cousin anymore but as a young woman. I went right to my room and masturbated as I thought about her beautiful young body.
I love her as my cousin and would do anything for her. I would never try anything with her and would never feel her up on purpose but I did get turned on then and I am somewhat ashamed.