Ok go to Hsm and Misc. Tv shows cross over and then choose the story What? your dating my sister!?!? its a Jonas and hsm crossover. Well sort of here is a summary.

Gabriella left , she was close to Joe whom was her teacher . Then she went to Claifornia met Troy dated and married him. Now she is back in town because of her divorce , but what happens when both boys want her. Expecially when Joe is dating her sister.