I accidentally woke my delicate stepsister in the middle of the night and had sex with her, semen bleeding onto her genitals

One night, I stumbled on my stepsis in the middle of the night for an enflamed meeting. It grew into a wild, intense session, with our mutual desire culminating in a messy climax, and a wild, intense session with our mutual desire culminated in a messy climax on her eager, inviting flesh.