Caught Off Guard by My Date's Unexpected Move

It was three weeks after my divorce papers were finalized. I had just turned thirty and decided to start dating casually again, hoping for something light and fun with no strings attached. That’s how I found myself out one Saturday night on a date with Sarah, someone I met through a friend of a friend. She seemed nice enough, smart and funny, and we hit it off well over dinner. We walked back to my place from the restaurant together after our second round of drinks left us feeling more relaxed than before. As we stepped into my apartment building, she turned to me with an unusually serious look on her face for someone who was just minutes ago cracking jokes about her cat’s strange habits. Her voice came out steady as she asked, “Do you want this? Do you want to see what it feels like?” Caught off guard by the sudden change in mood and tone, I could only nod dumbly. She led me towards my bedroom without waiting for a clear answer, her movements quick but not rushed. Once inside, she closed and locked the door behind us before turning back to face me with an expression of intense focus. Sarah started unbuttoning her blouse slowly while maintaining eye contact, watching my reaction closely as if gauging whether I was still on board or not. It felt like a dream, but one that wasn’t unpleasant despite how out-of-character it seemed for the evening until then. When she asked me to undress too and take off my shirt, I hesitated momentarily before complying. We ended up having casual sex there in my bedroom, nothing fancy or complicated, just two adults exploring their bodies together after weeks of not being with anyone else intimately. Afterward, we chatted briefly about what had happened before Sarah left quietly sometime later that night. There was no lingering awkwardness between us, but also no mention of repeating it; both aware it had been a one-time thing. I’ve thought back to that night often since then, was I being an asshole by going along with something so unexpected and outside the usual boundaries of a first date? Or did Sarah know what she wanted in that moment, and am I just overthinking it now weeks later?