(This could be for maybe a MHA roleplay or just a roleplay where they train to fight)

Person a and person b are sparring. This is a regular occurrence between the two - to improve their strength, and to just hang out. Which is why they usually have dinner together afterwards. Currently, they are doing hand-to-hand combat, dodging punches and kicks. Person a manages to push person b to the ground, and pins them down. 

What happens next?