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Mary Kate Olsen, Ashley Olsen, Bob Sagat

Dimitrios Kambouris/WireImage.com / Dan Herrick / ZUMA

It's probably a good thing that Mary-Kate and Ashley Olsen skipped last night's Comedy Central Roast of their Full House father, Bob Saget.

Hosted by another Full House alum, John Stamos, the comedic beatdown included loads of raunchy sexcentric jokes about the Olsen twins.

Roasters like Jon Lovitz, The Sarah Silverman Program's Brian Posehn and Gilbert Gottfried showed no restraint during the two-hour taping on a Warner Bros. soundstage in Burbank. They even made several cracks about having sex wtih the Olsens when they were underage.

Perhaps Saget knew what was in store for him.

Before the show even started, he said, “I don’t have my children here. I don’t have my mother here. I can’t keep it clean tonight."

Saget did, however, bring along his girlfriend, Michelle Ghatchi.

But the Olsens may not have to worry about the jokes getting much TV time when the roast airs Aug. 18. A rep for Comedy Central says, "It will have to be edited very gingerly.”

—Additional reporting by Alexis Brunswick