furthering the relationship

so me (F/15) and my boyfriend (M/16) have been going out for about 4/5 months and it's both technically our first proper relationship. I had friends who did ~sexual stuff~ within the first month of dating meanwhile it took us a month to have our first kiss. I was wondering how to bring slightly more sexual stuff into the relationship (we've technically had dry sex but only once or twice) and I'm scared incase I'm either not pleasing him enough or being too pushy. I would talk to him about it but it's still rather awkward for us. I was wondering if anyone could offer some general advice??