@Bob the builder well, wolves knot when mating. It's just that something on their pe*** (I forgot the name) swells and makes it unable for the pe*** to leave the female. It's to ensure ones sperm travels the fastes inside her so that she bears his pups. It's not necessarily omegaverse
A (self certified) nice a***ole that's just here for the fun and to Over-Analyse stuff that I read >.>