Watch: Anderson Cooper Blushes Over Mother's Sexcapades on WWHL

Anderson Cooper and mommy, Gloria Vanderbilt, stopped by Watch What Happens Live to chat with Andy Cohen. The host convinced his pal's mom to "Spill the Tea" about some of her most notorious romances.

Orson Welles, Errol Flynn, and Marlon Brando came to mind. It was Howard Hughes who Vanderbilt claimed to have given her her first orgasm, much to Cooper's embarrassment. It was worth it to make the silver fox blush on live television.

Watch Gloria Vanderbilt gossip about her most famous conquests below: