That internal baby clock is apparently ticking very loudly for Kevin and Danielle Jonas these days.

The Jonas Brother and his wife have mentioned that they've been considering kids while promoting their new reality show, "Married to Jonas."

The two say in a video clip posted on People.com that it's about time they have a little one - plus, there's all the pressure they're getting from family members to procreate.

"People are like, 'All right guys, what's your plan? When are you going to have those grandkids?' " Kevin, 24, said. "I'm starting to feel that pressure a little bit."

Added 26-year-old Danielle, "Having kids is a big question right now ... We do talk about it a lot." And then there's the fact that "my mom wants a grandkid bad," she admitted.

Kevin and Danielle met on a family vacation to the Bahamas in 2007, and tied the knot with a fairy-tale-themed wedding in December 2009.

The magical event, held at the Oheka Castle in Huntington, New York, included an enchanted forest and glass slippers in the bride's shoe size - a gift from her new husband.

The couple's reality show premieres August 19 on E!.