Blow Job

Okay please please someone tell me if I'm overreacting or not. So I've been seeing this guy for like 2 months and we almost had sex once but recently he's been basically begging for head and once even said it was "my job" I got so annoyed and tonight he said that he "needs" head from me... I got super annoyed and stoped replying to him. It's not like I don't want to blow him it's the way that he comes about it is what bothers me. Am I wrong?? What should I do?