Kyle Richards looks like she knows something about a possible Charlie Sheen appearance on “Real Housewives of Beverly Hills.”

TMZ got Kyle Saturday at LAX, and she says flat out it’s possible Charlie will make an appearance on the show. As we reported, Charlie’s ex and mother of 2 of his children, Denise Richards, is joining the ‘RHOBH’ cast.

Charlie and Denise have a long history of getting along and then going for the jugular.