Happy kitty, sleepy kitty
Purr, PURR, PURR
The Big Bang Theory Season 10, Episode 20
Purr, PURR, PURR
The Big Bang Theory Season 1, Episode 11
♪ Purr, PURR, PURR
The Big Bang Theory Season 12, Episode 19
Purr, PURR, PURR
The Big Bang Theory Season 2, Episode 21
Happy kitty, sleepy kitty
Purr, PURR, PURR
The Big Bang Theory Season 10, Episode 20