Luna and Sae always keep track of their heat cycles, and they realize that it should be starting the next day. Rin is away for work so they both go through his laundry basket, finding the clothes that still smell like him. They make their own nests and await for his return home from work. He still isn't back by the time they go into heat, but luckily they have each other to scissor while they wait. Rin eventually gets home to the whole house smelling like his omegas, making him more eager to mount them. He finds them bumping clits when he walks into his room and quickly pulls his nii-chan onto the bed first. He's already prepped from playing with Luna so Rin is able to slip in his cock right away. Luna impatiently watches Sae take his cock, humping a pillow and sniffing one of his shirts while he waits for his turn. Rin is overwhelmed by their scents and wetness that it doesn't take long for him to pop a knot. He fills Sae up then moves him to the side once he's finished. Luna is already spreading his pussy and backing up into Rin to take him. Rin holds the older omega down and pleases him the same as Sae, filling him until his hole is just a leaking white mess. He's able to continue for a couple for rounds, breeding them until he's sure that they'll be popping out his pups in a couple of months 🤭🤭😋