Actor Jeremy Irons claims that gay marriage could lead to fathers getting married to their sons – for tax reasons. The 64-year-old claimed he didn't have 'strong feelings' about same-sex marriage but said it could be used to allow fathers to pass estates on to sons without being taxed. Speaking to Huffington Post Live host Josh Zepps, Irons asked: 'Could a father not marry his son?' He claimed incest laws could not prevent it from happening because: 'It's not incest between men. Incest is there to protect us from inbreeding but men don't breed.'