"So, how old were you when you first ate a butt?"
That's a real question Sway asked Gabrielle Union during his radio show in a conversation about sexual reciprocity ... a conversation that has everyone grabbing some Scope.
Gabby appeared on "Sway in the Morning" and talked openly about sex -- and that's when tossed salads appeared on the menu.
Dwyane Wade's wife says even though men will deny it, they enjoy a little backdoor love from women ... and they're singing a completely different tune in the bedroom.
Butt -- it's what's for dinner.