help?

Rachel • 20. In love with a soldier 03•02•14. Psychology Major with a Criminology Minor.
Alright guys, so my boyfriend absolutely refuses to go down on me. Well first off, all he does is fingers me & I can barely orgasm from that. But I tell him that if he would go down on me, I'd cum a lot faster. But he just won't do it. Keep in mind, I go down on him ALL THE TIME. Any advice on how to get him to go down on me? 
P.S we've been dating for 2 and half years