I tore my stepsister's yoga pants to have sex with her from behind

I was hanging around my stepsister's place when she decided to invite me to join her in a yoga session. Initially, I thought it was a good idea, but then things took a strange turn. As she was doing her stretches, her yoga pants ripped, revealing her small, perky tits. It was then that I couldn't resist the urge to have her. I grabbed her from behind, kissing her neck and shoulders while unzipping my pants. She eagerly took my hard cock into her mouth, sucking it with passion. I then laid her down on the bed and entered her from behind, enjoying the view of her pierced nipples. We continued in various positions, with her showing off her skills and enthusiasm. Throughout the encounter, she never once forgot to tease me by playing with her pierced nipples. It was a wild ride, and I'm sure my real sister would kill me if she found out.