Son's friend's mother is really friendly with teens. Is this weird?

[zomg]

Wow... Haha, damn you are so jealous, hey its pretty normal she sounds like she is outgoing and kind she has probably gotten use to talking to her friends. You should try it out, I mean unless you are afraid that she will be doing something to your son and his friends then I dunno what to say, but I can say that she is so not trying to do anything that you wouldn't do. She seems like an awesome mum, I mean if I had like girlfriend problems I would happily ask her for some advise and maybe life help if ever needed. I dunno but she is cool. Try not to get too worked out about get, it's NORMAL. Oh and by the way Let us know if you actually get along with your daughter.. We would really like to know.