Anxiety medicine and orgasms

I take 60mg of Prozac and it's impossible for me to reach an orgasm anymore since I've been on them. But going off of them is out of the question, so my question is does anyone have any suggestions on how I can reach my climax by taking any other vitamins or anything? The sex is great but is never completely fulfilling and can sometimes bum out my boyfriend because he feels he's doing something wrong.