Jon Gosselin Cheated On Kate's Birthday?

As if this could get any worse, UsWeekly's latest cover is reporting that Jon Gosselin cheated on Kate Gosselin on her 34th birthday.

On that day, March 28, Jon was on a steamy, booze-filed trip to Park City, Utah, with 23-year-old school teacher Deanna Hummel (the June 1 Jon & Kate Plus 8 episode only showed him helping handicapped children ski as Kate celebrated her birthday alone with the kids on a "surprise" trip to the Ace of Cakes' kitchen).

He supposedly also told friends that it was Kate's birthday and mentioned that he should get her some jewelry but never followed through. That same night a source reported that Jon and Deanne were "cuddling up" and that the two were "reeking of pot.
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