Another email I got:

"As long as there is no kind of penitration between the 2 males in any way its not gay. Their goal is to simply "fulfill" the woman or use or whatever you want to call it. Balls rubbing is purely accidental in the case of anal/pussy action at the same time.

Two men rubbing against each other in a standing room only event does not mean they are gay or showing affection, its purely accidental."