No way! I'm not immature. You're immature. I am somewhat immature, but you're more immature. I'm older.
8 seconds sound clip from the Pineapple Express movie soundboard.
You can hear this line at 01:18:52 in the Blu-ray version of the movie.
Quote context
[...]
- I've...
- What?
- I'm just processing that last bit. You wanna... Oh, fuck.
- You're the one that's immature.
- You know what? I lost my virginity when I was 14 years old.
- How many girls have you even slept with?
- Two and a half? What is a half? Your hand? That doesn't count.
[...]