Home made pizza for lucky brothers

Normally the two young boys, Timmy and Jos, would never like to help in cooking. Then we realised that if we are cooking things they like, they seem to have endless energy and helped to cook without problem.
Last night, eldest sister Esther, baked a pizza for them. They quarreled today because it was not enough! So, she baked two more today...
... to satisfy their appetite! They will bring them to school tomorrow and also eat them for breakfast. For some reason, they simply love them! Lucky boys! Once Esther go back to UK next Friday, they will have to figure out how to motivate me in order for me to make pizza for them!