The art of placing a womans tit/boob/breast into a mans anus. This is a fairly difficult task often needing a regular sized breast that can be easily manouvered to enter the butt hole of the man. It is entirely the mans decision what is done with the breast once insersion is complete
"my girlfriends gives the best tits in the bum"
"ah god my b hole still hurts after i got my tits in the bum"
"Brian: wow look at the cans on her!
John: They are lovely, but far to big for my bum
Brian: i would be able to cop that tit"
Start in titty fuck position then stand up, lift one leg and flip that bitch round! Now squat on her face and proceed to rub your penis between her tits while she gives you a rim job.
Guy 1: That bitch thought she could get away with a regular titty fuck, but I spun that bitch round!
Guy 2: Did she eat your ass?
Guy 1: You know it!
Guy 2: Reverse titty fuck bum-brow?
Guy 1: Hell yeah!