You’re an omega. On such a day, You were lying on a bed wrapped in sheets, with the door of your room locked. Pheromone distribution during estrus was very dangerous and Bakugou's room was right next to yours. Your pheromones were starting to reach him. Lots of strawberry smell...Bakugou tried hard not to go to your room, but he fell under the spell of your pheromones and came to the door.