It's not going to be easy; despite Osamu being mellower than Atsumu, he does have an ego. It's not as big, but after a lifetime of competing with each other for attention, Osamu is always willing to give as good as he gets.

"Fuck," Osamu moans. "I'm starting to get close."

"Me too," Atsumu said. "I wanna cum all over your face, Kita-san."