I don't agree with all this for a few reasons,
1. for a tolerant and multicultural society, there seems to be an awful lot of groups both social and religious, that want to push their views on everyone else that is not part of their group, and i.m.o. that's just wrong, a person should respect someone else's beliefs and values, even if they don't accept them personally, just like they should have their own beliefs valued by others.
2. This issue is very country specific. e.g. as a US citizen and subject to the laws of the US and the state she was in at the time (as stated) it may be c crime or a misdemeanour, however in the UK, so long as both parties are above the age of sexual consent (16 by the way) it's not a problem in the eye of the law.
on a side note to no.2 there was a push by some politicians a few years back in the UK to try and raise the age of consent to 18. this was pushed aside (didn't get far enough to be voted on in parliament) mainly because of UK marriage law and the differences between marriage law in Scotland and the rest of the UK. In England, Wales and Northern Ireland, two people are free to marry of their own consent when they are both above 18, but you can be married at 16 with parental consent (required from both parties parents if both are under 16). Whereas in Scotland you can be legally married at 16 and there isn't a thing your parents can (legally) due to stop you.
I marreid young (19), and had my first sex at 16, i don't regret any of it. I'm happy. both events were with the same person, and only now, when I'm 25 are my wife and I expecting our first child. Not all teen sex leeds to pregnancy.
in conclusion, people are going to do what they feel is right at the time, we all remember teenage hormones, so come on give the lassie a break, if she wasn't famous would we all be talking about it, NO.