After the war, Jason gave Percy and Reyna each a five pound bag of blue jelly beans to celebrate their victory. Leo dared the two of them to have a contest to see who could eat them the fastest.
Percy and Reyna had two things in common: they both loved jellybeans, and they were both overly two shovelled handfuls upon handfuls into their mouths, their faces and hands were stained blue, and just the sight of them made Jason want to puke.
Percy won, but not by much.
The next morning, they were both too sick to get out of bed. No matter how hard they tried, they couldn't get the blue off.