Sexting

Okay I'm 13 and recently me and my best friends have been getting really close and we've been statting to sext eachother and now apparently people at his school are telling him I'm playing him so he is saying we shouldn't talk anymore but then he said tell anyone about the picture because he sent  first and then I just sent so bum, boobs and pant pics he sent body and dick pic 😁 and he's saying he might tell people and I've told him not to because I don't want to called a slag and I don't know what to do 😥😥😥😥