Yesterday we reported that R-Patz and co-star Reese Witherspoon had returned to the LA set of Water For Elephants to re-shoot final scenes, but it seems the biggest challenge, or rather smallest, was left until last as Rob was spotted on set holding an adorable baby.
It seems Rob took playing dad in his stride though, as he said at Sunday's Golden Globes: "I was just doing some additional stuff for Water for Elephants, and there were loads of kids ... I've always got a baby!"
We imagine he'll be a dab hand at baby whispering by the time he films scenes for the final Twilight film with Edward and Bella's child, Renesmee.
WATCH THE WATER FOR ELEPHANTS TRAILER BELOW
By Hayley Spencer