Depends on the guy. If he acts too straight, like he's a man's man, into smells, and you can just tell he think he a mass straight….HELL TO THE FUCKING NOOOOO. His ass prolly smell like chipotle, and isn't cleaned out like a good bottom should be.
If it looks clean, and has no smell..OOOOOOO THAT MAN GUNNA BE HARASSED AND TERRORIZED by my tongue.
Funny thing is, is lately in life, i've been eating more "top" guy's asses. We take a shower, and really suds it up. Then I get them completely naked and on all fours on my coffee table. Balls danglingly, and back arched so the hole is exposed. Looking like a dog at a dog show waiting to be inspected. Then I massage their back and kiss down their spine and kiss and lick their ass cheeks. If there's hair around his ass or hole, I gently brush my whiskers against them and try to get him to make some noises. Otherwise if he's shaven, I just wrap my lips around his hole and start devouring.
Something about grabbing a guys ballsack in one hand, and pulling his clean ass into my face, it's like natural viagra. I never go soft.