Nick Jonas, last seen revealing most of his ultra-fit body in Flaunt magazine, is now also revealing a few of his worst dating no-no's.

The 'Jealous' singer, who is in a steady relationship with former Miss USA Olivia Culpo -- sorry, ladies! -- spills to Cosmopolitan a bit of his personal romantic history and his No. 1 dating turn-off.

"I have had so many bad date stories," he tells the interviewer. Pressed for more details, he answers, "Well, there was a few where, like, alcohol was involved and it just got really bad. Those weren't necessarily the worst dates. The worst dates are when people, like, know more about me than is comfortable."

Be warned: Apparently one cannot Google the way to Nick's heart. "She just starts asking me questions that you wouldn't know unless I told you, but she knew from wherever, from online or something," Nick says. "I don't know. It was just very odd."

The interview continues with a fun section asking the 'Kingdom' star questions that would appear in his OkCupid profile (if he had one). If you manage to get that first date with Nick? There's one thing you should never, ever do: "Texting while you're out on a date," he answers. "No phones. Put your phone away. That's, like, every date, even years into a relationship. Stop texting. Pay attention to what's going on right now."

And it should come as no surprise for a man dating a beauty queen that he is knowledgeable in one specific obscure topic: pageants. "I'm really in tune with them now," he says, laughing. "I can, like, call who's gonna win if I watch a pageant ... or what the top five would be. I can't bet on it, I can't go to Vegas and bet -- I'd get in trouble."

See Nick's Brother Kevin's Yearbook Photo (And More Celeb Yearbook Photos)!