You, Tsukishima and Yamaguchi went shopping. Tsukishima was walking calmy behind you two, while you and Yamaguchi were pushing eachother with your hips. After some time, you didn't notice that Yamaguchi moved away, to get something from the shelf, while Tsukishima moved towards you... He turned to look at you when you wanted to push Yamaguchi with your hips. You you unexpectedly pushed your hip towards Tsukishimas crotch...

he blushed slightly, trying to keep his annoyed and straight face