Penny, this is Sheldon's twin sister.
Missy, this is our neighbor Penny.
The Big Bang Theory Season 1, Episode 15
Missy, I'm gonna go get my nails done.
Do you wanna come?
The Big Bang Theory Season 1, Episode 15
Bye, Missy, see you.
The Big Bang Theory Season 1, Episode 15
- I'm gonna go home and wash my hair.
- Don't you dare, MISSY.
The Big Bang Theory Season 2, Episode 16
So, Missy, what brings you
all the way from Texas?
The Big Bang Theory Season 1, Episode 15