Kutcher ex warns Kunis to 'keep eye' on him

Ashton Kutcher's former fling Sara Leal expects him to cheat on his new girlfriend Mila Kunis.

The 22-year-old blonde - who claims to have slept with the 'Two and a Half Men' star in a hotel room on his and ex-wife Demi Moore's sixth wedding anniversary in 2011 - says the 'Ted' star shouldn't trust the 35-year-old actor and thinks the brunette beauty should "definitely keep an eye" on him.