That is so true. I've never been big there and had been the brunt of jokes by other guys in the showers after sport, so had low self-confidence when younger. When I went through a period of real promiscuity I started studying more about sex, reading erotic reviews and how to please stuff, then ultimately became considered very good at it. I always called my penis , "my little friend" which was a sort of way of bringing some humour to the bedroom. Then things seemed to go crazy for a spell when women I'd been with started to ask if they could bring a friend next time. That was when I knew how much women talked about it to their friends, and it got me a reputation. I even overheard one lady introducing me to another by saying "This is Byron, he's very good at sex!" I felt like beating my chest like a gorilla, especially when I went to the toilets for a pee and the other girls was waiting outside and slipped a piece of paper into my hand with her phone number, gave me a long kiss, giggled and ran into the ladies.
Later on I studied Tantra also and could practise mutual non-touch massage and meditation with my girlfriend, that the sex became spiritual and to such a high that we were inseparable for years and often many times per day into my 70's.