
Yeah, well,
your Ken can KISS my Barbie.
The Big Bang Theory Season 2, Episode 7

We had our first KISS.
The Big Bang Theory Season 12, Episode 6

Grow up, I was lying, I lie all the time.
Nobody wants to KISS me.
The Big Bang Theory Season 4, Episode 9

...KISS you on the lips.
The Big Bang Theory Season 6, Episode 23

If you'’d like to
KISS me you can.
Oh, great.
The Big Bang Theory Season 12, Episode 3