Kiss

A kiss is an affectionate expression seen in some episodes:

Coop and Kat

In Mind Games, Millie's hair (Bride of Frankenstein) made Coop and Millie kiss each other making them disgusted.

Phoebe

• in Amazing Feet Of Strength, while watching Coop play soccer, Phoebe kisses a sign with Coop's picture on it
• in The Kitty Vanishes when Coop keeps being teleported into

  

  

  Phoebe's party he exits with lipstick marks on his face, presumably from Phoebe kissing him offscreen
• In Flea Brains, while Kat was controlling Coop, Phoebe answers the door and thinks he wanted a kiss and she accepts.
• In House of Scream, Phoebe kisses Coop for saving her and the other from being crushed by the walls with deadly iron spikes Kat made.

Fiona

• In Something About Fiona, Coop kisses her to get her grounded.

  

Other

• in Good Luck Harm when it brings him Fishy Frisky Bits Kat kisses the lucky amulet made from Burt's 12-leaf clover he's wearing
• Dr. K kisses Mr. Kat goodbye in The Kat Went Back Part 2.