IMHO....Both extremes are equally damaging: On the one side the slut (which is more descriptive of me) is very comfortable in his own skin and being naked and intimate around other guys one on one or in groups, but this can also prevent the formation of any serious emotional level relaitonships, open or monogamous, not to mention you have to always be on guard against STD's.
The prude on the other hand (more descriptive of my ex) has top opposite problem. He acts almost embarrased he has a cock or a sex appetite and keeps his body covered up as much as possilbe (even when he looks great naked). The repressive side is damaging becasue it manifests itself in the form of an internalized slf loathing, usually coupled with other substance issues deigned to help manage the repressive attitude. IN the case of my ex, the moer he had had to drink, the moer affectionate and passionate he became, but sober, he was the complete opposite even to the extent he dind't like to kiss.
The ideal is a balance somehwere in between those two points where you are comforatble in your own skin and bein sexual and intimate with other guys but not to the point you can't form an emotional bond long term with another male.