Y'all know about Ben Affleck and Matt Damon's longstanding bromance, right? It's a bromance like no other. So special is their union, Ben Affleck is said to have been 'pretty jealous' that Matt Damon kissed Michael Douglas in the Liberace biopic. Of course Affleck's married with kids 'n stuff, but still, Douglas would want to back the f*ck off.

The 'Argo' star -  who is married to actress Jennifer Garner, with whom he shares daughters Violet, seven, and Seraphina, five, and 13-month-old son Samuel - joked that he was very envious that 68-year-old Michael got to lock lips with his best pal in their new movie 'Behind the Candelabra'.

The 40-year-old actor and director told E! News at the premiere of his new movie 'To The Wonder' on Tuesday night (09.04.13): 'Pretty jealous, pretty jealous.

'It burns me up. You know, I feel the envy in my heart. I can't stand it.'

Matt, who is set to renew his wedding vows with his wife Luciana next weekend, previously revealed he calls Ben, who he has been friends with since college, his 'hetero life mate' but Ben suggested that their friendship may be in danger.

He said: 'I saw 'Behind the Candelabra'. I don't know about the hetero part anymore.'

Michael's wife Catherine Zeta-Jones previously admitted that she was also jealous that her husband got to kiss Matt in the film, in which he plays the flamboyant pianist Liberace.

She said: 'You know if my husband's going to kiss anyone let it be Matt Damon.

'I have never kissed Matt Damon. I'm so jealous.'

We wouldn't mind a go of his smackers either. Let's watch the pair in action in Good Will Hunting.