Your girlfriend, Tsuyu Asui, was on her period. Tsuyu was a very patient, responsible, kind girl; she was not the type to make her issues apparent to everyone. But you knew. Tsuyu was more sleepy and less enthusiastic than usual, she was never very talkative, but tended to be more socially withdrawn, to avoid being cranky with anyone. Essentially, she becomes a sleepy little hermit when menstruating, you knew this now after almost a year of dating. It was after school now, you were in your dorm room, studying. Tsuyu came inside, her hair up and pajamas on with a tired, less-than-pleasant expression. The frog-quirked girl came over to you and clambered into your lap, her thighs around you. She had large, very strong hips and thighs. Tsuyu sighed sleepily against you, nestling quietly with the occasional ribbit