ROBERT Pattinson enjoyed making fun of costar Taylor Lautner while the pair filmed the latest Twilight movie, Eclipse.

Rob, 24, admits he teased 18-year-old Lautner for wearing tight shorts on set.

“We have a fantastic laugh — especially when he’s wearing his little spandex outfit!” said Rob. “He’ll be shouting: ‘You stay away from her!’ And you can just slap him on the arse as he is walking away.

“There was another scene where he has to be naked. It was raining and he was trembling. I’d stand there and say: ‘Oh sorry, I forgot my line. Let’s do it again!’ That was funny.”

Rob recently revealed that he’s hoping to continue his intense shooting schedule for the foreseeable future — because it makes up for the months he spent unemployed when he was first starting out as an actor.

“I just want to work as much as I am now. I like working all the time because I spent so many years before Twilight just doing stuff for two or three months of the year,” he said.

“The rest of the time I’d do nothing, or I’d just have tiny little jobs.” CREDITS TO SHOWBIZSPY.COM