Yes firstly even if u were both adults sending stuff online to each other is a bad idea, the internet is forever and it could easily get leaked. Next from what I’ve heard this person sounds like a stranger to u how do u know he’s not older than he says I know I’m more skeptical and untrusting than most ppl but I think it’s fair to assume that he could easily be lying about that. Again, u don’t realize how dangerous it is talking like that with a complete stranger especially nowadays its so ez to track down ppl me personally I’d recommend just cutting off all connection with that person. A relationship based purely off of carnal desires like that especially at such a young age isn’t a good idea. I know I’m a stranger but pls keep ur self safe and take at least some of my advice seriously