Former teen heartthrob and first-time dad Freddie Prinze Jr. is a master diaper changer, which is almost too adorable for words.

"I'm good at it. I'm fast," Prinze Jr. dished on Tuesday’s Lopez Tonight. "I can time myself, 46 seconds."

The 33-year-old and his wife Sarah Michelle Gellar welcomed daughter Charlotte Grace into the world four months ago, and although Freddie is a whiz at switching out damp nappies he admits that he falls short in the car seat department.

“My mom drove like Britney Spears with the steering wheel and me right here [in her lap],” he joked. “I'm fine, I turned out OK. We had a Volvo."

Ha ha! Sassy and sexy, Buffy sure chose well! (People)

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