Physically, men enjoy receiving anal sex more than woman do, it is a much more sensitive spot for them as the prostate can be stimulated and the prostate is where the orgasm comes from.
Most guys probably at one point or another find this out while masturbating or if their partner puts her finger in...
The problem is, "Most guys" will then think this means they are gay. Very sad in my opinion. It is kind of the same as if getting a blow job meant you are probably gay, then most guys would be disgusted at the thought of having a woman blow them.
Such a pity that most men deprive themselves of this part of their sexuality.
Or just one of gods jokes?