Would you seduce your best friends wife, if asked?

True story. My childhood best friend is in a marriage that he describes as loveless and sexless. They have 2 children and have been married almost a decade. He and his wife are both miserable in the relationship. She won't leave because dude makes killer $$$, he won't leave because he came from a broken home and doesn't want the kids to think it's his fault that their family split up. The other night, he came up with a terrible plan...he wants me to make a move on his wife so he can "bust" us, and blame the whole thing on her. I know how wrong this is. But it's my best friend that has done anything I've ever asked of him. Should I do it?