
- I'm gonna go home and wash my hair.
- Don't you dare, MISSY.
The Big Bang Theory Season 2, Episode 16

Penny, this is Sheldon's twin sister.
Missy, this is our neighbor Penny.
The Big Bang Theory Season 1, Episode 15

...to make sure
that Missy chooses a suitable mate.
The Big Bang Theory Season 1, Episode 15

Missy. Do you enjoy pajamas?
The Big Bang Theory Season 1, Episode 15

MISSY:
Oh, really?
The Big Bang Theory Season 1, Episode 15