What things you do at a sleepover for two 13 year old girls?

If your a parent, leave them too it. Kids at 13 are at the stage where its "not cool" that your parents are mummy cuddling them in front of friends. Give the two girls a choice of dinner: take away etc. and just leave them to it. Obviously if they need anything just be there for them.

Most importantly don't embarrass your kid in front of their friend!