My sister helps me ejaculate in the restroom

In the confines of our private restroom, my step sister unexpectedly interrupts me while I'm indulging in a solo session. She quickly realizes what I'm up to and decides to lend a hand, or rather, a mouth. Despite my initial shock, I can't resist her eager offer to join in. The taboo of family dynamics is set aside as we delve into a steamy encounter. She skillfully takes me in her mouth, her expertise surprising me. The public setting only adds to the thrill, as other family members could walk in at any moment. The excitement is palpable as she works her magic, her lips and tongue working in tandem to bring me closer and closer to the edge. The room fills with my hot release, a fitting end to our illicit rendezvous. The risk, the taboo, the intense pleasure - it all makes for an unforgettable experience.