Some seriously steamy footage from Fifty Shades of Grey has been released onto the internet today. 

And whether you've got a well-thumbed copy of EL James' naughty novel stuffed under your bed or you're a Fifty Shades virgin, we've broken it down for you. Here's everything you need to know, in 15 stills... 

Meet Anastasia Steele, our innocent, virginal college graduate who has ended up at Grey Enterprises because she's doing her flatmate a favour. She's nervous about meeting the infamous Christian Grey...

Fifty Shades of Grey, Dakota Johnson

And she's right to be. This millionaire, with an insatiable appetite for S&M, is one intimidating chap.

Christian Grey, Fifty Shades of Grey

Though, a lot less so once we get our first glimpse of him in all his silky-tied glory...

Christian Grey, Fifty Shades of Grey

Meeting over, Anastasia says her goodbyes and gets in a lift. While filthy old Grey is probably imagining what's going to happen next time she gets in a lift...

Dakota Johnson, Fifty Shades of Grey

Ah. Here we go... That lift scene.

Christian Grey, Fifty Shades

Smoochy, smoochy. 

Fifty Shades of Grey,

It's not all snogging and getting felt up in lifts though. The light streaming through the trees tells us this is in actual fact a love story. 

Fifty Shades of Grey, Christian Grey

Christian and Anastasia go on dates, in helicopters and gliders and stuff.

Fifty Shades of Grey

They even have dinner with his family. Where, admittedly, he puts his hand up her skirt. (Look out on the right for Rita Ora...)

Fifty Shades of Grey

But Christian is all dark, brooding and confusing...

Christian Grey, Fifty Shades of Grey

And rather than being put off, Anastasia is intrigued. Just look how intrigued she is.

Fifty Shades of Grey, Anastasia Steele

So Christian decides to let her into his secret and unlocks his sexy red room... 

Fifty Shades,

Anastasia is shocked. But then she gets over it. 

Fifty Shades of Grey

Really quite quickly actually. 

Fifty Shades of Grey

And then they have sex. 

Fifty Shades of Grey

Like, loads of it. 

Fifty Shades of Grey

Fifty Shades of Grey will be in UK cinemas 13th February 2015