London, July 29 - Hollywood actor Josh Brolin has revealed that he struggled to film sex scenes with model-turned-actress Megan Fox in upcoming movie 'Jonah Hex', as he had to kiss the brunette while wearing a bulky mouthpiece.

The actor spent three hours in the make-up chair having his mouth stretched open with tape and facial prosthetics fitted to transform into anti-hero Hex - a badly scarred American Civil War veteran for the big-screen adaptation of the comic book and the cumbersome make-up didn't allow him to perform at his best while filming steamy scenes with the stunning actress, reports imdb.com.

'It was tough to figure out how to kiss with that thing on. To be honest, it was uncomfortable; those scenes are uncomfortable. It was especially uncomfortable because I had this thing on my face,' he said.