When the quiet girl turns out to be the biggest slut?

I promise I'll be a good girl if you let me pass that Biology

I promise I've been a good girl

I promise I've been a good girl

I promise I've been a good girl

Does this good girl get any good dick?

I'm a good girl with a wild imagination

I promise I've been a good girl

I promise I've been a good girl

I promise I've been a good girl

You think you could help me out?

I promise I've been a good girl