You Seem Pretty Stiff, Senpai / I'll Do It For You, Senpai!!.
Nagatoro offers Senpai “hot snaps”, which he assumes are nude photographs, until she reveals she was talking about Snapping Hot Chicken and teases him for being perverted. Nagatoro notices Senpai is a slow runner and demands he jog with her. Senpai is distracted when Nagatoro turns up in a revealing running outfit. When he collapses halfway Nagatoro torments him until he reaches the finish where she continues to torment him during their cool down stretches. Senpai needs a model for his latest drawing and Nagatoro teasingly insists on modelling for him...