Why cant i enjoy my boyfriends sex?

ive been sexually active for a few years and always have had really good sex life. just recently i got together with a man who ive been attracted to for ages (he was a virgin) the first few times we had sex it was amazing i dont know weather it was because i was in control as he knew to let me do the work but know that he's getting more 'used' to it i can get any satisfaction :( he turns me on so much by even just touching me but then he ruins it by just jigglein on top of me? i feel like im a massive object he uses to **** to. as if im not even there. please help i love him and i love sex :( but he's makin it be a choore for me :(