So, I just read my DD's diary (yes, I know I know) and she has written all about her first snog (with tongues!) with a boy at his house (we drove her there at the weekend because he lives in the next town). Ok, fine, she's just turned 15, snogs happen. But then talks about how he choked her and it was so good as she went dizzy and it was really hot (ie sexy), and she thought she "did ok" (with the snogging) but maybe she should be more "dom" next time. She previously mentioned talking about choking with him, which apparently "turned him on".
He was also clearly trying to woo her previously but has just ended up apparently dating one of her friends, so she's also helping him cheat.
Then they were taking about how he wants to "fuck" but she wasn't sure, maybe next time she writes.
Help - how do I handle this? Is this because of ubiquitous porn? How do I talk to her that choking (when you are only just 15!) is not safe, and tbh inappropriate when you are only just exploring sex /sexuality?! Plus she's under the age of consent (for sex anyway), plus the very poor moral judgement of cheating.
We've got the "safe search" controls on her phone, so this must be from other friends' phones or just generally taking to each other.
I don't really want her to know I've found out about this through her diary, but on the other hand there's no way I'd know about it otherwise. And she has straight out denied previously that they are dating.
She has appeared so innocent up to this point, I'm a bit out of my depth....