Sister Sister -- If We Can Reunite ... The 'Predator' Guy Can Do It Too! (TMZ TV)

"Full House" is doing it ... "X-Files" is doing it ... so why shouldn't everyone's fave sitcom twins from the 90s do it too?! Yep, we got Marques Houston and he says a "Sister Sister" reunion could be on the horizon.

Which reminds us -- another TV reunion's about to go down ... between Chris Hansen and seriously creepy dudes. Allegedly.