This happened a number of years ago when I was working at a crappy retail job. I was 20 at the time and she was 18. There was a cute girl I worked with who seemed to take an interest in me, so we began hanging out together here and there on our days off, but they were never formal dates, and I didn’t think anything would come of it. Although after a few of these hang outs, things started to get flirty between us. At one point, I joked to her that I’m pretty skilled around a bra, and can easily undo it with one hand.
She took me up on that told me to try, so I reached behind while facing her and immediately undid it with my right hand. She seemed impressed, especially since she had very nice DD tits, so her bra had quite a few more clasps in the back than my ex’s bras had. We start sort of play wrestling, and before I know it, I’m feeling her nipples from under her shirt. Although, she admitted she’d never done anything like this before and would prefer to stop for today, so we left it at that.