Absolutttteeely. You've (probably) seen how he (or any of the Rivera family) get when he's called a coward or a chicken. The berserk button. But who's to say (if he chooses not to hurt you instead) he wouldn't try to prove he's not one in other means. Anything to keep the family name up, and it helps that he's rather easy to manipulate in the first place

Would take some real teasing, then maybe he'd figure out it was a stupid idea. In my point of view he's not exactly purely gay (bi with major female preference if anything judging by Jorge's retweets) he just finds himself ending in those situations; He's an enigma. Which makes the hypothetical scenario even better. But just to be safe, revoke access to his belt for the bet.