All you need to hit is the g-spot.
pic related, literally mfw
oh whoa.. whoawhoawhoaehoawhoahoawhaoWHOA FUUCK AAAA*breathes in through clenched teeth* SSSSSSSSSss AaaahhhAHHHHAHAAA....
S-SHITUH FUK. HIYYHOOOOOOOHHHHHH
>how do i know if i hit the prostate?
Trust me. You'll know.
The prostate is responsible for secreting some components of seminal fluid. Women don't need it. It also has some muscles that help squeeze jizz out of your tubes.
If you wanna find your prostate, stick a finger 3-4 inches up your ass and then curl your finger towards your dick. You will know if you hit it, believe me. You will feel the sensation somewhere near the base of your dick, but inside your body. Sometimes you can feel it in your stomach.