Deshaun Watson's fiancée, Jilly Anais, isn't just receiving lavish jewelry lately ... she's giving it out, too -- asking her brother to be her "man of honor" with an expensive Rolex!!
Anais' brother, Jules, shared the amazing gift on his Instagram Story over the weekend ... revealing the luxurious watch, which appears to be the Oyster Perpetual Datejust 41.
HONORED TO BE M.