My bf and I have been excited and nervous about massaging his prostate for the first time. We are finally comfortable enough to do it, but have no real idea of what to do. I am so sensitive anally, and have a hard time fingering or pleasuring myself with a toy anally. But I have an easier time getting someone else off if I have some idea of what to do. I am wondering if I should "train" myself anally, in an attempt to help me better understand how to please my bf?