Bondage and vore can be excellent together. There's something powerful about even the most willing of preythings being bound up for consumption so even wriggling is difficult. If I'm ever focusing on being completely and utterly at the whims of a pred, bondage helps a lot.
Bonus points if the pred is just a lil guy and the restraints let them take their time with their meal, with no risk of them having second thoughts and struggling out of it (which the lil pred wouldn't be able to stop otherwise).