Words Nilla and Mocha like:

• trifecta
• marmoset
• anthropomorphic
• concussed
• bogart
• infectious
• osmosis
• ocelot
• stalactites
• marmot
• startling
• urinate
• ensue
• exhibitionism
• preponderance
• emphatic
• nebulous
• globules
• zeitgeist
• copulate
• behooves
• cataclysmic
• schnubart
• rocktastic
• haberdashery

Words to be used in moderation:

• cooch
• boinked
• orifice

Words to refrain from using:

• arousal
• moist
• toughie
• boner
• penetrate
• the "c" word
• the "f" word (not the f-bomb, the other one)
• crazy coot
• pooter
• disemboweled
• coital