Jon Gosselin didn't wear anything by Ed Hardy — that we can see at least — when he arrived for Saturday's Wet Republic pool party at the MGM Grand.

Television_SLa_58205646_600 But he sure looked disheveled  – puffy bloodshot eyes, blotchy skin, stubble and greasy hair – walking the blue arrivals carpet.

We heard he'd brought his mother — Pamela Gosselin Castello — to Las Vegas, for her first visit to Sin City.

They were reportedly going to see some glitzy shows together. 

But we bet Mommy was getting rubbed and waxed at the hotel spa and turning in early, conveniently leaving Jon to hit the tables, the slots and indulge in various other Vegas delights.

Jon hinted as much on his Twitter feed, tweeting "Making sure mom's pampered at the spa."

At the Saturday pool party, Gosselin chain-smoked, chugged bubbly and watched the poolside bacchanalia. 

Check out little Jonny at the pool party! 

Wow, does he look wasted or what?

See more photos of Jon making a splash in Vegas!

Is it just us or does Jon look about 10 years older since he started going through his midlife crisis? 

Jon Gosselin Dish:

Will you wear Jon Gosselin's endorsed Ed Hardy clothes?

Jon & Kate plus 911? Cops called to Gosselin home

Jon Gosselin to party Hardy in Vegas in August! 

"Jon & Kate" ratings plummet! Are you still watching?

Jon Gosselin is dating a tabloid reporter?

Jon Gosselin's new girlfriend has a mug shot?

Photos FilmMagic

Posted by:Elizabeth Snead