How has a woman broken your brain with her appearance?

I was at my local gym this morning, and saw a cute girl using the squat machine. I took a few glances while in between sets, and caught eye contact a few times, so figured I'd say something the next time I walked past her. As I finished a set and went to get some water, I walked by her and saw her smile at me. It literally broke my brain and I forgot how to function. I made some weird audible noise and froze before turning around. I couldn't help but laugh at myself as I walked away, but Jesus, her smile was enchanting!

Has a woman ever broken your brain from her physical appearance alone?