As my gf has pointed out, gay and bi men usually shave and trim themselves bald. Actual straight guys for the most part are the ones that stay natural. She says she would never give a guy with shaved pits and bush, chest, etc the time of day as her gfs wouldnt either. They say its too much like being with a woman, men should have hair and they dont want a guy that is more into themselves then the women they are supposed to be with. As someone said earlier to look at the gym at the guys lifting to see. My buddies and i have noticed that the ones that have bald pits are the gay guys and the guys with hairy pits are straight. Some do trim but for the most part they are natural.