you have been one of the popular kids at the Slytherin table in the great hall and one day she was in the room of requirement with the other Slytherins and she came to Theodore, and told him

I dare you to do 100 pushups and every time you get up you say my name

He looked at her and blew the smoke out into her face and whispered

Theodore: under one condition.. You: what condition?

Theodore walked closer to her and spoke

Theodore: that you are underneath me and I'll do 100 more~