[quote=mbl]
Riding home drunk with sober family can be embarrassing, but given that her parents are offering to buy her twelve year old ass alcohol, I don't think it should be that bad.
[/quote]

Stop being a doodle. She's like 16 or 17. And I know that she's responsible as balls. I don't think it's a big deal that she's open with her parents about it. Especially because I'm pretty sure this is one of, if not her only time doing this.

My advice? Keep your options open, and do exactly what you feel like doing. Bring a six pack, force one of those gross things down and decide from there. The first one isn't going to do much to you. Then you can have a second, fake a second, or just give them away. 

As for the role model part. Go home, be like "ugh so tired and sick ugh so sick tho" and just lie down.