Bieber's baby bro

Justin whipped off his shirt and almost lost his shorts too as he twirled half-sibling Jaxon, two, through the air.

Justin looked like a natural as he walked hand-in-hand with Jaxon, the son of Justin Bieber's father, Jeremy and his current wife Erin Wagner.

The Baby star, 17, took time off working on his new album for the boys' day out at the beach in Malibu, California.

Justin went topless but wore a woolly beanie throughout now that's what you call a close-knit family.