Just This One Time & Never Again

My stepsibling Jeni always forgets to lock the bathroom door, causing me to barge in on her frequently. She is very protective of the bathroom and doesn't like me sharing it with her. Fed up with her behavior, I manage to open the bathroom door forcefully. Jeni doesn't notice my presence as I sneak into the room. Gently pulling back the shower curtain, I find Jeni naked and wet. Initially annoyed by my intrusion, she eventually agrees to have sex with me just this once. I'm amazed that I'm about to have intercourse with my attractive stepsister. Knowing that Jeni is quite promiscuous, she eagerly accommodates my large member on the bathroom floor.