I have already made a decision about this regarding my own child so I'm not really asking for opinions on what I should do but thought it was an interesting thing to chat about?
My nearly 14 year old has really got into reading this year, she's always got her nose in a book, which is great! As she was never a big reader and at one point was behind at school.
However,,, the books she's reading are not exactly 14 year old material! She loves Colleen Hoover and books like that. She's been passing them on to me to read and they are quite sexy!!! Not porn, but I definitely would not be allowing her to watch sex scenes like this on tv!
I think she's loving reading and that's a good thing! If I 'banned' these books she would probably stop reading altogether and she is of an age where she probably wants to learn about this stuff, it's interesting and exciting! She's not into real life boys yet and seems happy with her celebrity crushes 
I'm reading the books too and we have had some chats about some of the topics that I've felt are iffy; Colleen Hoovers women are all so,,,, pathetic? Seeking the male gaze and putting men before anything else, that makes me more uncomfortable than the sex.
I just wondered what peoples thoughts are?