[Intro]
G 
 I know we're only fifteen
D
 But you mean the world to me
Em          D          C
 And I am ready for tonight 


[Solo]
G D Em D Em C


[Verse 1]
         G         D
 Here we are all alone
           Em                D
 And I'm sliding off your clothes
          G            D
 I hope tonight is the night
             Em              D
 Where we finally get this right
             G                   D
 I kiss your lips, you hold your breath
           Em             D     
 And I can taste your innocence
             G                D
 I hope your mom's not coming home
                 Em           D     G
 Cause we're both dead if she ever knows


[Chorus]
G     
 I know we're only fifteen
D
 But you mean the world to me
Em        D             C
 And I am ready for tonight
G       
 I know we're only fifteen
D
 But I'd give you everything
Em
 And these fireworks
          C  
 Will ignite


[Verse 2]
     G                D
 I throw you on your bed
            Em                D
 And I can feel your every breath
          G                     D
 Upon my neck cause you're so loud
              Em        D
 And I can finally be proud
              G             D
 To be your first and your last
             Em                  D
 Close your eyes and don't look back
               G           D
 Just say that you love me so
             Em           D          C
 Cause it's all I really need to know


[Chorus]
G     
 I know we're only fifteen
D
 But you mean the world to me
Em        D             C
 And I am ready for tonight
G       
 I know we're only fifteen
D
 But I'd give you everything
Em
 And these fireworks
          C  
 Will ignite


[Bridge]
G               
 I've been waiting my whole life for this
  C                                            D           Em  C
 Here I thought we were only kids but we're growing up so fast
G                     
 I've been waiting my whole life for this
  C                                      D           Em   
 Just one chance to never look back and give it all away
      C
 For you


[Outro]
G      
 I was only fifteen
D
 Throw I knew everything
Em             D                 C
Got my whole life to get this right

G     
 I know we're only fifteen
D
 But you mean the world to me
Em        D             C
 And I am ready for tonight
G       
 I know we're only fifteen
D
 But I'd give you everything
Em
 And these fireworks
           C     D
 And these fireworks
         G
 Will ignite

来源：www.ultimate-guitar.com