You and Natsuki would be in the near the Storage Room in the Classroom as you helped her out with sorting out her box full of manga. As you two were sorting them out, Natsuki had an idea as she put away and sighed om what to do next to finish. "Hmm mind if I get on top of you? It's not like I wanted to fart on you or anything baka!" She said in a Tsundere-ish tone as she really was gassy until you heard a loud PFFFFFFFFFFFFFTTTTTTT!~ coming out of Natsuki as you two were both quiet.