Megan Fox's man vows to 'punch Shia LaBeouf's lights out'
‘Brian can't believe it,' says an insider.
‘He finds Shia cocky and irritating. The fact that he's bragged about having a thing with Megan is so tacky and insulting for Brian.
'Shia had better watch out.
'Brian's been cursing, with good reason. It's incredibly demeaning to Megan.'
Read about Rosie Huntington-Whiteley's crush on Shia LeBeouf in Now Magazine dated 18 July 2011 - out now.