Dear Pyreath, do read more into this than it is, its more normal than most will admit,
in spite of what a few die hards claim , no one is 100% either way but somewhere
on a scale in between.
You may be very heavily to the straight end of the scale but remember guys are
in a constant state of horniess and just about anything sets them off.
A physical stiuation in a hot steamy shower room with other guys can stimulate even
the straightest guys minor 5% gay curiousity.
Almost all the guys I have been involved with are close friends some married who a predominently straight but occasionally have a little fun with the 5% side.
Some of the single guys like the hassle free easy fun with a buddy, on the married side
some of the idiot wives either don't want physical contact after a while or refuse to
do anything other than the hurry up and get off me missionary position.
The guys don't think of it as cheating would be with other women that would be a serious threat to their marriage.
The majority of answers to your question are making more of it than it probably is.
Best wishes
CH