Step-sister discovers me masturbating to her lingerie and vigorously has sex with me until I climax inside her

I was lounging on the couch, indulging in some self-pleasure when my step-sister walked in and caught me in the act. She had a mix of surprise and annoyance on her face as she stormed over to me. I tried to play it cool, but she wasn't having it. She snatched away my favorite lingerie, and I could tell she was about to give me a stern talking to. But then, something unexpected happened. She started to undress, revealing her impressive curves and ample bosom. The intensity between us escalated quickly, and before I knew it, we were locked in a passionate embrace. The chemistry was undeniable, and we continued our steamy encounter until I reached my peak, filling her with my release. This unexpected encounter left us both in a state of shock, but also with a lingering desire that we knew would be difficult to ignore.