My girlfriend and I went rollerblading on a bike path that runs through town but is pretty wooded. I don't know what it is about skating, maybe seeing her in a sports bra and sweaty and getting to look at her ass while skating behind her, but I was horny! So we took a break at a small wood bridge running over this little creek. We began playing around and I was standing behind her and had my hands up her shirt and down her panties. We decide to go for it, I slid her shorts to her ankles and off of one foot and moved her panties to one side and pulled out my dick. She had me put it in her from the back with her legs spread apart. We were still standing and on our skates as I pumped her. We were only like a block and a half from a school and we could hear cars and kids a ways away, but we kept going. I came and we fixed ourselves and skated off. Only about a minute later we crossed some kids walking home on the path. Boy, would they have gotten a show.