No there will be no legal consequences. Bets from private persons to private persons are not accountable. There is no single case where any curt has seized someone's property due to a bet.
On a betting office you make a contract or buy a batch. That's a different thing.
I actually tend to agree that any liabilities arising from this bet are very likely worthless. It is what is been proposed in exchange for these "liabilities" that can lead to very serious and complex legal problems.