My parents never gave me the talk. In fairness my parents were divorced, and I lived with my mother, so awkward there… plus my stepfather was not really fit in my eyes to give the talk. There was the talk about it with my peers in school, but opinions on it varied. Some people had sex before we left middle school, others were staunchly not going to give it up yet for a variety of reasons.
My first real g/f, wayyyy back in sophomore year of high school, was the wait til marriage type. I was not. I was more than okay with waiting for a while though, especially since I’d never had sex either, and this was the first serious/physical relationship I’d ever had. I suggested it several times, maybe even tried, but she stopped me every time, and it never did happen (in fact to this day she’s a virgin to my knowledge, as she ended up becoming a lesbian 5–6 years after we split). I had one other serious g/f while in high school. She was not the wait til marriage type, but things didn’t progress that far before the relationship failed.
In the end I ended up losing my own virginity to a girl I worked with in my senior year of high school. I was very much into her, and we had “dated” for roughly a month before it happened. She had already lost her virginity, and much to my dismay, our relationship ended shortly after the act.. as she went back to the x b/f she had lost hers too. I didn’t have a serious relationship again until my Junior year of college. In retrospect I wish I had lost it to either of the two g/f’s I had in high school. Even if it had been too soon with the second g/f (the not-wait one), it would’ve been a better way to lose it I think.
I hid the sex stuff from my mom (not just sex, but oral sex, yada yada, etc)... But less because I thought she would disapprove, and far more because I thought it would be just incredibly awkward. It wasn’t the type of thing you just up and talked about with your peers either, but some of my closer friends knew what was up. Typically if anything happened with a girl while I was in high school, it meant we were alone at one of our houses. Sometimes we’d just be alone in the basement watching a movie or something, but more often than not there was no “authority figure” home.