Unfortunately this happened more recently than I’d like when I was 21. I don’t know if either time was intentional and if it wasn’t I don’t know if she knew I did it. I was too humiliated to acknowledge it and she was either oblivious or too kind to mention it.
I had just started dating a girl who was a year younger than me and also a virgin. She had told me she was a virgin but I had been evasive with the subject. Neither of us really knew what we were doing but I knew she was way out of my league and the only reason we we’re dating was because a mutual friend had set us up.