An Awkward Moment With My Stepsister (Part 1)

Earlier today, I encountered a steamy situation with my Stepsister Mia Martinez. Despite my attempts to ignore it and retreat to my room, she persisted in pursuing me. Before I knew it, she straddled me and tantalized me with her breasts, before engaging in oral pleasure.
I proceeded to engage in penetrative intercourse with her moist genitalia from the rear, to which she responded enthusiastically. Ultimately, she welcomed my ejaculation within her pubic region. It was an irresistible encounter, beyond my control.