Blind Item Guessing Game: Kissing Someone Else's Rose?

Ben Widdicombe slyly dropped this doozy on us this morning:

Which perfect husband was sleeping with a 19-year-old while his celebrity wife was pregnant with their third child?
A deliciously juicy blind item, unless he's talking about some sitcom lady who no one's ever heard of. Let's assume that he's not, though, because it's more fun to puncture the 'perfect' reputations of Seal and Mark Conseulos. Think it's one more than the other? Any other candidates? Let us know, and maybe we'll run a poll if we're feeling less lazy later.

Don't Shoot the Messenger [Gatecrasher, last item]