Definitions by grandma tits

FMT 

Fucking the tits, in an up and down motion.

Placing the penis, in between the large tits, and humping them, as you would for humping a chair! The penis is stimulated by the tits rubbing the penis. And the tits are stimulated by the rubbing of the penis.

I told my sugar daddy to fmt, and he did! It was fucking. Amazing.

FMT by grandma tits June 21, 2010