Happy anniversary, Donald and Vanessa Trump!

Donald Trump Jr. and wife Vanessa celebrate their two-year anniversary today.

“We’re very compatible, we trust each other, we love each other, and we’re best friends,” Vanessa, 29, tells me at Citi presents Duran Duran’s Red Carpet Massacre. “We’ve never had an argument overnight, and that’s rare for people who’ve been together for four years. We’ve never slept on the couch.”

Donald, 29, adds, “We have a really good time. We can have a great time doing nothing or doing the most amazing things in the world. It doesn’t really matter.”

How is their daughter Kai, six months, doing?

“She’s been a total pleasure,” he tells me. “She’s really well-mannered. Not cholicy, not crying a lot, she’s just the perfect temperament, it’s been great. She’s sitting up on her own now, her teeth are just starting to break through, so we’ll probably have some moments of agony in the not-too-distant future, but overall, things have been pretty great.”

Unlike his dad, Donald Jr. changes diapers.

“I thought I was going to hold out as long as possible, but they got me pretty much on the first day in the hospital because Vanessa wasn’t ready and ultimately, by default, somebody has to do it,” he says.

At least he’s a good sport.  :)