This is a VERY personal issue.  Your boyfriend should NOT push you = you say he doesn't,  but then in the same sentence you say he pressures you because your refusal makes him think that you don't feel secure with "Him".  So, he's taking your problem and making it about him.  Please try to understand that men see our bodies differently than we do .  Some men love this as a part of lovemaking while other men are completely turned off by it.  Apparently, you feel uncomfortable having him in such close contact with this area of your body.  If you cannot do it - then you just have to tell him so.  However, if you think you might bewilling to try it  and see how far you can go - talk to him about it.  Tell him that he must be willing to STOP if you say stop - you might find that you like it more than you think. Take things slowly. As far as your worry about body odor - as long as you are freshly bathed - and there is no infection of any kind - then tell him he can start SLOWLY!!!!   YOU SAY "YES, NO, AND ENOUGH!!!"  If he's patient and you can trust him to do exactly what you ask him to do (nor NOT do) you may find that you will come to enjoy this activity more than you realize.  Still, whether you choose to make this a part of your lovemaking is entirely up to YOU!!! It's NOT about HIM - it's about you and it's your decision, not his.