To place ones shaft between a preferably big tits in order to thrust in and out to reach orgasm.
Men loves tits, love more to touch it, so titty fuck a girl big breasts is a wonderful thing.
- Hey man did you fucked the girl you met in the bar? She had enormous tits!
- Nah. She told me she was waiting till marriage anyway we went to her house and she gave me a blow job and let me titty fuck her soft big tits and cum in her nipples. Anyway it was awesome!