For the boys: First time sex?

So while us girls clearly remember and form an attachment with the first guy we ever sleep with, I've heard and read mixed things from guys. So here's what I want to know; do you clearly remember the first girl you had sex with? And do you still feel anything for her?

If you broke up with her, do you still sometimes remember the sexual times you shared? Whether thats on purpose or not.
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What I really want to know is; do you still feel anything for that girl? even if you don't speak. just because you had sex did it cause an attachment/connection?
For the boys: First time sex?
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