Creature: Licker

Games/Movies: Resident Evil 2, Resident Evil the Umbrella Chronicles, Resident Evil 5, Resident Evil the Darkside Chronicles.

Would Include:

. You meet it at the Raccoon City Police Station.

. It follows you around the Station, killing any Zombies that approach you.

. Having it lick you to show affection.

. Sometimes it will let you onto it's back to help you reach different places quickly.

. Feeding it Zombies.

. Having to protect it from other people, who try to kill it. 

. Having some 'fun', with it's very long tongue.

. Later on you encounter the Improved Lickers bred by Tricell, and learn how to improve your one in the same way.

. After the evolution, the Licker gains the ability to breed naturally, leading to a few sleepless nights.

Fuck, Befriend, Run?