Well, most probably you know that a man's prostate gland is called the male G-spot. It is because this hidden mysterious hill can bring incredible satisfaction and intense orgasms to its owner if stimulated. Just like women and their G-spot.
A man's G-spot is less probably to be precisely located and stimulated during anal sex. Unless the giver's penis is curved. This is the reason why most gay men are invited to resort to fingering or sex toys to stimulate their lovely prostate. Fingering implies the using of the giver's playful fingers to insert and stimulate the receiver's anus. The latter procedure is more pleasing and enjoyable as it implies the usage of prostate massagers totally dedicated to this dinky area. They are cleverly made to generously stimulate the gland in the most blissful way.