Jon Gosselin arrived at the club at 11:20 p.m. and by 2 a.m. "could barely walk" as he exited the less-public back entrance of Legends Lounge -- near the family's $1.3-million home in Wernersville, Pennsylvania -- on April 18, a fellow partier tells Us Weekly.
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The dad of 8 -- kids are twins Madelyn and Cara, 8, and 5-year-old sextuplets, Aaden, Joel, Collin, Hannah, Leah and Alexis -- was overheard yelling, "Hey, babe! Babe! Give me my jacket!" before climbing into his Nissan Nismo. (She complied.) As cameras began snapping, he panicked, urging his female friend to "get in the car!" before speeding off hastily -- without even turning on the headlights.
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Where was his wife Kate -- known for her insults and who famously once berated him for breathing on the show?
Nearly 2,000 miles away, promoting her book Eight Little Faces in Bellevue, Washington.
While TLC had no comment on the story or the couple's marital status, Jon sent an emailed statement to Us.
"I went to Legends to speak to the owner. A friend of mine wanted to check out my car, so I let her drive it to her car," he says. "Yes, I have female friends -- but that is all she is. I'm not going to end my friendships just because I'm on TV."
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In February, the 32-year-old was spotted flirting with -- and even attempting to kiss -- coeds at Juniata College, multiple students confirm to Us Weekly. (He denied any wrongdoing.) He told one coed "he was getting divorced." In the May Ladies Home Journal, he says, "I always thought I would be, like, 54 years old and marry a 19-year-old or something."
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For more details on Jon's bizarre late nights out away from his family, why neighbors in town believe they may have split, how he "hates" attention from the hit show -- and the real story on their marriage once the reality TV cameras are turned off -- pick up the newest issue of Us Weekly, on stands now. Join Us on Facebook and Twitter for even more up to the minute celebrity news and photos!