Stepsister interrupts me changing and gives me a handjob

As I was casually changing my clothes, my stepsister decided to pay me a visit. She's always so nosy, it's really annoying. But this time, instead of just chatting, she decided to lend a hand. Literally. She started giving me a handjob right there on the couch. I was a bit taken aback at first, but soon I was enjoying the sensation. The way her soft hands moved over me, it was almost too much to handle. I could feel my excitement growing with every stroke. Eventually, I couldn't hold back any longer and I let it all out right there on the couch. What a wild ride! Afterwards, we acted like nothing happened, but deep down, I knew we shared a little secret.