The loss of innocence is a big thing in the life, marking the point when they stop being a child and truly become an adult.

When it comes to the world of celebrities, however, this distinction is harder to make. Thank golly gosh for the Olsens then, who we’ve been able to watch all their lives as they became adults! With problems!

The latest occurrence in Mary-Kate Olsen’s quest for womanhood has come as she seeks immunity from prosecution in the investigation into Heath Ledger’s death earlier this year. Oh how she’s grown!

Investigators looking at the cause of Ledger’s death want to ask Mary-Kate some questions about a couple of powerful painkillers the Dark Knight star had taken before his death. However, the once cherub-faced little angel has now turned into a character akin to a mob boss, it would appear, as her lawyer has told the feds she won’t cooperate without immunity.

Aww, isn’t that sweet?

We’ve seen Mary-Kate on her journey through being a twin-child star, through growing up very much in the public eye and then taking on the necessary change from child to adult actress that brings down so many young actors.

Then we got to see her vilified by PETA, move away from solely working with her sister, having kidney problems and dealing with anorexia.

But this time she’s really gone and grown up – requesting legal immunity from federal investigators. It’s a big step in the life of any young woman and one that is sure to cement her position as a proper, bona-fide grown-up.

In a statement released to the media, Mary-Kate Olsen’s lawyer said:

“Despite tabloid speculation, Mary-Kate Olsen had nothing whatsoever to do with the drugs found in Heath Ledger’s home or his body, and she does not know where he obtained them.”

Which is all well and good, we’re not going to argue with that, nor are we going to accuse anyone of anything. But it does seem a bit strange when someone refuses to speak to investigators unless they are guaranteed immunity from prosecution. The statement goes on:

“Regarding the Government’s investigation, at Ms. Olsen’s request, we have provided the Government with relevant information including facts in the chronology of events surrounding Mr. Ledger’s death and the fact that Ms. Olsen does not know the source of the drugs Mr. Ledger consumed.

We don’t know the source of the information being quoted in the media regarding the Government’s inquiry, but these descriptions are incomplete and inaccurate.”

On the other hand though, while it may look like the Olsen that isn’t Ashley has something to hide, she may well be asking for these stipulations just to be on the safe side. It’s understandable, really, if she was involved with Heath Ledger just before his death – either as ‘just friends’ or more – that she’d want to play things with more caution.

Regardless, hecklerspray will be keeping a close eye. And we don’t grant immunity.

Ever wondered who's influenced the Olsen twins the most? No, us neither – move along.

No, wait, come back. Just because you don't care who influenced the Olsen twins, we don't care who influenced the Olsen twins and we'd be frankly stunned if even the Olsen twins cared who influenced the Olsen twins, the Olsen twins are writing a book all about the people who have influenced them.

The book – tentatively titled I Totally Like That, You Know, Old Film Guy Who's, Like Dead And Stuff – doesn't have a release date. But that doesn't matter, because if you're thinking about buying the Olsen twins' book, we'll come and beat you up.

You know when people start describing their dreams to you, and how it's widely considered to be the dullest, most self-absorbed thing a person can do? Well, it might be time to rewrite the rulebook, because the Olsen twins have plumbed the endless puddle of their combined intellect and found an even more insultingly self-absorbed, faux-profound way to slap you in the face.

The Olsen twins are writing a book. A book about their influences. A book about their influences called Influence. That we're expected to buy.

That's right! Now you – yes, you – can discover for yourself the individuals who shaped the skinny young pointless lives of the stars behind the epic To Grandmother's House We Go and the timeless tear-jerker How The West Was Fun. Not the real main influences of the Olsen twins, you understand – like their pushy parents and Lance Armstrong's cock – but invented ones that make them look cleverer than they actually are, as the Associated Press reports:

According to a statement issued Wednesday by Penguin, the book will include "exclusive photographs of Ashley and Mary-Kate from world renowned photographer Rankin, and a wide variety of other never-before-seen materials and interviews from Mary-Kate and Ashley's personal collections." The 21-year-old actresses will be writing about photographers, artists and designers including Bob Colacello, Terry Richardson, Jack Pierson and Christian Louboutin… "Ashley and I interviewed the people who have inspired us, with the hope that they will inspire and teach others," Mary-Kate Olsen said in a statement.

Still reading this? You haven't got so angry at the Olsen twins' self-indulgent desire to make you better people by being more like them that you've ran screaming into the street and punched a stranger in the eye? Goodness, you're doing better than us.

OK, we'll admit it. We're terrified that this Olsen twins Influence book will be successful. Not because we despair at the cultural repercussions of such a transparent vanity project being read by the public, but because we're frightened that the Olsen twins' peers will copy their idea.

Because it's one thing to buy a book about the Olsen twins' influences, but we're buggered if we'll buy a book based on Lindsay Lohan's influences. Pay good money for a big book of blank pages that all smell a bit like gin and vomit? Sod off.

Read more:

Olsen Twins Working on `Influence' Book – AP