SakuAtsu (not yet) What if Atsumu tries to make Kiyoomi jealous discussing apps and he's like "going out is too risky, I'm a public figure, but if I go on tinder, I'm going to have too many people on my ass--" And Kiyoomi wips his phone out and shows the grindr app like "use that, it worked out

atsu you beautiful dummy, this gave me a laugh

just well for me in college..." and Atsumu's eyes go fucking big because he did NOT really intend to get on an app, he wants Kiyoomi! Now there's a million scenarios in his head about Kiyoomi serial-hooking up with people. Joke's on him, Kiyoomi didn't delete the app but he's not using it anymore.