Two girls both ditched your brother during recess??!! (Yes, I know I just broke the rule about one single punctuation mark, but I'm that surprised!)
Your sentence suggests that your brother had two girlfriends at the same time (never a good idea) and that during recess they both told him they no longer wanted to date him (unsurprising, especially if they had found out about each other).
Also, if they ditched your brother, why would you say your sentence to your brother's friend? It would make sense to say it to your brother.