Warbaby and Aussie- we had some fun with a CR expreiment awhile back that you might enjoy. I used to not be able to cum through intercourse alone, and had to have some sort of clitoral stimulation. To try to overcome this, my fiance came up with the ide of CR while he was out of town for 4 days. The task was that I had to masturbate everyday, bringing myself to the edge (but never going over), so that I would be super horny when he got back.

However, there were rules. Since he would be gone 4 days, the first day I had to masturbate 4 times, then add one more time each day. On the last day when he returned, I had masturbated a total of 30 times without release. Needless to say, when we had furious lovemaking that night, I had my first orgasm without clitoral stimulation, and have never had a problem since.

Of course Aussie, you probably won't have this problem (wanna share some tips on how to orgasm on command?), but it could prove to be fun nonetheless. I found it to be pretty enjoyable, and the release made it worth it- the orgasms I had that night were some of the best I've had. Happy experimenting!
-Phan