Honesty is the best policy. If he’s not doing something that you need, trust me, the guy is gonna want to know! I know it’s awkward because you don’t want to embarrass the other person so my advice would be to talk him through it when he’s doing it. A little bit of instruction goes a long way, especially when you’re breathless, naked, and holding him by the back of his head. 😉
When he starts using his mouth on your nipples, just gently tell him how you want it done. Tell him you how you want to feel his tongue on you, tell him to go slower, tell him how good it feels when he does it. Don’t tell him he was doing it wrong before (he’ll get that without it being said), just tell him how you want it done now. If he’s the right kind of guy, he’s going to want to do everything he can to please you, and he’d probably hate that he’s been getting that part wrong. If he gets shy about it, encourage him even more. Verbal and non verbal praise and encouragement will get you everywhere!
That’s just my humble opinion. Anyone else have thoughts on this?