Richard Pryor had a lot of s-x in the '70s -- and it was with both men and women -- including Marlon Brando ... according to Pryor's widow, Jennifer.
Jennifer confirmed the Richard-Marlon hookup, which Quincy Jones first mentioned in a pretty wild Vulture interview. As Q put it, Brando would "f--- anything. Anything! He'd f--- a mailbox. James Baldwin. Richard Pryor. Marvin Gaye." The allegation sent the Internet into a frenzy.
Jennifer tells TMZ ... Richard would have no shame about Quincy's comments. She says the comedic legend was always very open about his bis-xuality with friends, and documented it extensively in diaries. Jennifer says she'll publish them later this year.
As for Richard hooking up with Brando -- she says, "It was the '70s! Drugs were still good, especially quaaludes. If you did enough cocaine, you'd f--- a radiator and send it flowers in the morning."
Jennifer says she has no doubt Richard would be cracking up if he heard Quincy spilling the tea.
