@BL obsession Su-ah's puts his pheromones on Junhyeok and its like a bat signal to other alphas that "this omega in particular is taken/has a mate". It's meant to protect the omega from any untoward advances by another alpha. Most times if omegas are familiar with the alpha that scent marks them the dont notice theyre being scent marked. That's how Su-ah was able to get away with it for years. Junhyeok became nose blind to his scent
dilfs4life