Suddenly, my stepsister appeared out of nowhere. She always wears a tank top and panties without a bra—it's ridiculously sexy! Her plump, protruding butt is incredibly charming! One day, I couldn't resist her beautiful ass while she was napping and inserted my fully erect dick into her panties just a little bit. Then I noticed a wet spot on her panties!? Does this mean she felt it? Assuming so, I moved her panties aside and secretly inserted myself, but of course, my stepsister woke up. However, since she was already feeling it, she let me have sex with her!
