In most states in the US, divorce results in a 50/50 split, therefore he could only request one back. But I doubt it would be SUPPORTED in a court of BRA!
Reminds me of a guy in Florida. One of those rich 'playboy' types. Some gal finally married him but to protect his assets he had a ''prenuptual'' tatooed on his you know what so she couldn't miss it. a bit later when they got divorced she still took everything, seems the prenup' didn't 'stand up' in court yo...