danny's nickname is Kitty . he was the quit boy at school and Corren was the most popular guy at school . as soon as Corren saw Danny he fell in love and started flirting and called dan Kitty and dan knew he was a player and automatically called him mr piggy . It's an inside joke they still use the nicknames . also this story might be triggering (Self harm anxiety homophobia etc.)(CC) Attribution-NoDerivs