Kevin and Danielle Jonas Are ‘Always Talking’ About Another Baby

10/15/2015 at 11:15 PM ET

Kevin and Danielle Jonas enjoyed a night out on the town Monday, a break from their busy lives as mom and dad to 20-month-old daughter, Alena Rose.

“She’s getting so big!” Danielle told PEOPLE at The Knot gala in New York.

“Everybody kept on telling me she’s going to get so big, so fast, and I would hate people saying that — but it’s so true!”

Their toddler is talking up a storm, but can’t quite say “fish” yet, Kevin says.”She says a profanity instead of ‘fish.’ I think you get the idea,” he jokes.

Kevin Jonas Danielle The Knot Gala
Steve Zak Photography/WireImage

Alena is also in love with dogs, the one trait she got from her mother. The parents agree that she is a spitting image of Kevin, and joke about dressing her and her little buddies up as the Jonas Brothers for Halloween.

Unlike brothers Nick and Joe Jonas, Kevin is focusing on fatherhood right now. But the singer still brings out his guitar to entertain his little girl.

“It’s the first time she heard that song, I played it and she just lost it,” Kevin explains. “I’d stop and she’d just look at me like, ‘Why are you stopping?!’ It was very sweet.”

😉

A post shared by Kevin Jonas (@kevinjonas) on

The couple will celebrate their six-year anniversary in December: “Once we get past this [year], seven [years is] the average so we’re doing really well,” Kevin says.

Their secret to a successful marriage is to “just stay happy, communicate, try to do things together,” he adds.

And as far as siblings for Alena, “we’re always talking about it, so it’s always there,” says Danielle.

— Kristen Caires

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Showing 15 comments

Julie on

Precious couple!

g on

I’m glad she looks like her dad. I always like when little girls favor their fathers.

Anonymous on

g- Me, too (probably because I happen to be one of them)!

Nanu21 on

Does he work or what?

Anonymous on

Nanu21, Kevin now owns a contracting company.

Christy on

Cute, nice looking couple. The kind that should definitely have more kids.

Zippy on

She’s a little pumpkin! How do you know she looks like him though,

TLC fan on

Love them!! Such a sweet adorable family.

really on

What an absolutely precious couple! Love them.

Julie on

Danielle always dresses to perfection….so pretty….so very classy!

lilly pond on

She is funny looking. Too many nose jobs. Just my opinion, so don’t hate.

lilly pond on

Sorry, she is ugly. Her sister Dina is much much prettier.

Paula on

They’re an adorable family and the picture of Alena is so cute.

Paula on

They’re an adorable family and the picture of Alena is so cute.

Mel on

Great couple. Yeah go for it another kid is great!!!! What happened to their show? I liked it.