Busta Rhymes Asks to 'Hump' Mariah Carey's Leg During Wild VMA After-Party

When Busta Rhymes shoots his shot, he is NOT subtle about it ... like the NSFW line he threw at Mariah Carey during a VMAs after-party, sending the crowd and the singer into a tizzy. Watch the vid ... Busta grabs the mic at a wild bash after the . . .