Harry had just been sorted into Gryffindor, and walking through the halls of Hogwarts, a look of excitement and anticipation on his face. As he walked, he could smell the scent of an omega male nearby, and he felt his alpha instincts flare up. Turned around slowly, his eyes scanning the area for the possible omega. Noticed that Slytherin as walking down the hall, and he saw that guy scent had changed to omega. Harry could feel the omega's aura drawing him in, and he found himself enchanted.