John Stamos has still got it, dude.

The Full House alum left little to the imagination when he marked his 63rd birthday on Aug. 19 with a naked selfie.

In a black-and-white snapshot photo from his bathroom, Stamos proudly showed off his, well, birthday suit while standing in front of a mirror. The image was precariously cut off right above his pelvis, leading many of his followers to say in the comments section, “Have mercy!”

In fact, Kelly Rizzo—the widow of Stamos’ former costar Bob Saget—couldn’t help but to channel her late husband’s humor while reacting to the steamy snapshot. 

“All I can think about is ‘what would Bob say’ right now,” she quipped. “Happy birthday brother John I love you!”

Meanwhile, Canadace Cameron Bure commented, “Happy birthday Uncle J.”

And for Stamos, stripping down is a birthday tradition. As he captioned a picture of himself in nothing but a pair of Calvin Klein boxers while ringing in his 62nd birthday last year, “A rooftop birthday shower in NYC to start the day, and the love of family and friends to carry me through.”