Buy a pair of handcuffs, walk out into the living room naked while he's watching TV, hold out the cuffs to him and tell him you'd really love it if he'd cuff you up and have his way with you. You said he's your best friend, so that mean you must trust him. If he's like most men, he'll love the chance to satisfy your needs and desires. Most men's minds are filled with all sorts of dirty and raunchy thoughts of what they'd like to do with women, but most are too afraid to bring them out into the open.

The fear factor is most especially potent when it comes to anything sexual in men when they're with someone they really care about. "God, if i do this to her, what's she going to think about me?" Try small things like the handcuffs at first and build n that. But like most people have mentioned, communication is extremely important in any relationship. Bad communication is probably one of the biggest reasons couples end up cheating on each other. "He wasn't satisfying me." That's a very common statement. So is this from the man, "Why didn't you tell me?" In BDSM a relationship between a Domme/Dom and a sub/slave gets really close and intimate. There are few secrets if any, most especially of a sexual nature. Most Mistresses/Masters will never admit it in front of their subs/slaves, but they're out as much to satisfy their partner's needs as much as they are their own - at least the very good ones are.

Well, i hope this advice from a humble slave helps you.
slave gary