Help please??😁

My boyfriend and I are both 16, we've been together for a long time now and known eachother for 5 years. About 2 months ago we tried sex for the first time (That was when I lost my virginity). We've had sex two more times after that, but I don't know how to communicate with him well on what feels good and what doesn't do much for me. We've both been very careful to use protection😁 and just a disclosure were both responsible and just decided to try it  because of curiosity and to strengthen our relationship❤️ just asking any sex or relationship advice from older or more experienced people!😊