William Shatner and Betty White
Ron Wolfson/Landov; Jamie McCarthy/WireImage
09/15/2010 AT 10:15 AM EDT
"She's really old. I think of her as an old friend. I mean an old friend. But listen, she's got moves you wouldn't believe. She’s totally flexible in the hip area. Her arms are stiff, but the hips? Totally flexible."
William Shatner, joking in the October issue of Playboy
, on sale Sept. 17, about what the Golden Girl, 88, could teach a young "whippersnapper" like himself – who's 79.