Watts' personal life has outwardly appeared to be substantially quieter than those of his bandmates and many of his rock-and-roll colleagues; onstage, he seems to furnish a calm and amused counterpoint to his flamboyant bandmates. Ever faithful to his wife Shirley, Watts consistently refused sexual favours from groupies on the road; in Robert Greenfield's "STP: A Journey Through America with The Rolling Stones", a documentary of the 1972 American Tour, it is noted that when the group was invited to the Playboy Mansion during that tour, Watts took advantage of Hugh Hefner's game room instead of frolicking with the women. "I've never filled the stereotype of the rock star," he remarked. "Back in the '70s, Bill Wyman and I decided to grow beards, and the effort left us exhausted."