ok...the prostate is easily found through the anus...thus if something went up your ass and hit your prostate over and over again...it would make you have the best orgasm that you ever had...its very simple actually...you dont even need a dildo...you can have your girl do it to you....with her finger...actually it is found that many men like this...havent you ever watched the movie ROAD TRIP where stiffler gets fingered up the ass when he is donating cum????? geezz...before you become too judgemental over your friend look into the facts...and quit being a lame ass...he likes freaky shit...ever thought your girl would like it if you were a little less tense about some stuff in bed????? give it a thought and ask her about it toooooooo...stop being a typical male and open yourself up