Ryan Reynolds has banned Anna Kendrick from stealing away his wife Blake Lively.

The two actresses appear together in upcoming mystery thriller 'A Simple Favour', and they teased the 41-year-old star as they got flirty on Instagram last month while joking about the possibility of a fling.

Asked about Anna's claims that she should be allowed to have an affair with Blake, Ryan quipped to 'Entertainment Tonight': "I know a lot of guys that would be fine with that but not me, I would like to hang onto her.”