girls dressing in all girls party

yea..they can do watever they want…but then one should not preach about dressing modestly..its the preaching part that annoys me…coz they can dress like that when they are at home…but when their abayas are not properly closed..and then ppl can see what is going on under the abaya…that is not very modest is it?

Otherwise how would I know if their abaya was done up properly..if I can see..so can other men.