No. It's a simple phenomenon/reaction of omega pheromones,especially since Mochiduki is near his heat. Hence why Hiro told Matsuo to stay outside as Matsuo would have also been affected.
No. Mochiduki is an omega with excess pheromones. Remember alphas react to omegas during or close to heat no matter what. Hiro had will and respect for both of them, hence he ran to the shower.
wait so michi's dad and alpha papa are destined mates?