Kyle MacLachlan was trying to keep Elizabeth Berkley "steady" during their over-the-top pool sex scene in Showgirls.
The pair played love interests Zack Carey, a casino entertainment director, and Nomi Malone, a young drifter, in the 1995 erotic drama, which followed the latter as she hitchhiked to Las Vegas to chase her dream of becoming a big-name showgirl.