You knew something was wrong
When he didn't come round
Wouldn't hold your hand
When you went into town
Then he was spotted
Kissing someone else
Rumours abound
It was your best mate Chels

They sat together
In chemistry the other day
They said it would be easier
To do experiments that way
When you weren't looking
He was giving her the eye
She uncrossed her legs
And put his hand on her thigh

He's been fucking your best friend
He's been fucking your best friend
They've been fucking after school
In his fucking living room
He said he did it 'cos she
Looks a little bit like you
He's been fucking your best friend

We all know that boys
are easy to lead astray
And I've noticed that she
hasn't had that much to say
Since you found out and you
Went a bit 'schiz'
You pulled her hair
And punched her in the tits

It takes two to tango
But she's still to blame
All the other girls you'e spoken to
Said that they feel the same
But you don't fight like
Those other chicks
You're all tight-clenched fists
And kung-fu kicks

Fist and kicks (x3)

he's been fucking your boyfriend (x2)
They've been fucking after school
To that fucking shit Maroon 5
Record that he stole from you
She's been fucking your boyfriend

Fists and kicks (x7)

She's been fucking your boyfriend (x2)
They've been fucking after school
The fucking swelling on his tool
Still hasn't gone down since
He had it inside you last night
If this is a three-way relationship
Where was Chelsea then?

She was fucking his best friend (x2)
They've been fucking after school
In his fucking living room
She said she did it 'cos he looks a little bit like you
She's been fucking your best friend

Fists and kicks (x3)

She's been fucking your boyfriend
Now she's fucking his best friend

Fists and Kicks (x2)

Let this be a lesson to you
Keep your hands off
Other people's boyfriends' dicks