It turns out that David Spade did, in fact, produce an heir.
A baby girl born last week to former Playboy Playmate Jillian Grace is the 45-year-old funnyman's biological daughter, a rep for Spade has confirmed.
"David and Jillian have been in close contact throughout her pregnancy and he plans to go see the baby during his first break from shooting Rules of Engagement," publicist Meredith O'Sullivan told People.
The man-about-town had admitted to a brief fling with Miss March 2005, but remained mum for the most part about whether or not he had something to do with her expectant status, which Grace revealed in January.
A rather upstanding Spade told E! News at the time: "If it is true that I am the father of her child, then I will accept responsibility."
The baby was born Aug. 26 in Missouri.