Frankie Jonas opened up being deemed as the favourite uncle to the Jonas Brothers' kids.

Jonas Brothers who were once teen heartthrobs are not only all grown up but also fathers to beautiful children today.

In a recent interview with E! News' Nightly Pop, Frankie and Kevin who recently teamed up for a new reality show Claim to Fame, 

spoke about their bond and particularly how Frankie has formed a special bond with his brothers' kids. 

After Kevin admitted that his youngest brother is the favourite uncle for all the Jonas Brothers kids. 

Reacting to the favourite uncle tag, Frankie said, "There's really no competition. It's my only job. 

Jonas Brothers who were once teen heartthrobs are not only all grown up but also fathers to beautiful children today.

The youngest Jonas once also attended Coachella with Joe. 

Nick also joked that his 21-year-old brother is "the closest in age to the kids." 

In terms of the Jonas Brothers' kids, Joe recently welcomed their second baby, another daughter after their first child Willa Jonas.