How do I hit my prostate? Where is it? I've been masturbating anally for a while but haven't been able to hit it yet.
You are not using your finger - inside wall, in about 1.5 to 2 inches. About the size of a walnut - should firm yet soft, kind of like your penis just before it gets nice and real hard. Tools do not on feeling, only your fingers can bring a dual sense of touch.