Indeed. My daughter and I have had many conversations about the idea that when you sleep with someone, you are exposing yourself to THEIR ENTIRE SEXUAL HISTORY. So, every person you sleep with is potentially like you are sleeping with dozens or even hundreds more. And, you can't un-do possible exposure to an STD. So, while sex is a lot of fun, it also carries a lot of possible risks with it, particularly for young women, who will also have to handle the vast majority of responsibility for an unplanned pregnancy.
Back in the summer of 2007, my daughter was 12 years old, a movie was advertised on Lifetime called Girl, positive. I called all my daughter's friends mothers and asked if they could come to my house and watch this movie about a teenager who is infected with HIV by the older, popular brother of a friend in school. The kid is the high school star, popular, hot, etc. She goes to a party at his house and has unprotected sex with him.
she has a sub teacher, played by Jenny Garth who had also been infected with HIV at a young age.
The gist of the story is that school is such an intimate setting, that if one person is infected with HIV they can potentially kill their entire graduating class because of how often partners switch at that age.
and a stat of interest
Half of all new HIV infections occur in people 25 and younger.