I assist my stepsister with her outfit and it leads to a sexual encounter

I was helping my stepsister get ready for a night out when I noticed she was struggling with her top. I offered to help, and as I was reaching around to assist her, my hand accidentally brushed against her breast. The unexpected touch sent a jolt of electricity through both of us, and we couldn't help but give in to the sudden rush of desire. What started as a simple act of sisterly assistance quickly escalated into a heated encounter. I found myself undressing her, revealing her perfect body beneath her clothes. She reciprocated by unzipping my pants, taking my hardened member in her mouth, sucking me off with expert precision. The taste of her was intoxicating, making it impossible to resist the urge to taste her sweet nectar. We proceeded to engage in a wild and passionate session, exploring each other's bodies in ways we never thought possible. It was a night neither of us would soon forget.