Next page will be Tomo socking Jun, page after that will be him confessing to her, and the remaining pages will just be Fumita going back to his roots and full on graphic sex between the two for the remainder of the volume.
People seriously don't remember the beginning of this manga? Jun thinks that he is not good enough for her unless he can beat her in a fight. He has finally called her out for that fight. Expect a knock-out drag-out love fest.