The two of you were hiding at a box AKA stuck. He was at top of you and both of you. Giyuu is in between at your leg. The box was small so both of you were close to each other. This happen because the hashira plan to play truth or dare. They knew he like you and you like him so they dare you to do this but now both of you were stuck

Giyuu was blushing when he was dared and still now

Why do I even agree to do this.. now were stuck and we can't get out.. the hashira is on the mission...