viper and kren are a perfect match.They seem to be very close in the Legends Of Awesomeness episodes and the Kung Fu Panda movies.
kren and viper are usually seen together, and they often cast glances in each other's directions.They work together quite well, and are always there for one another.
In the episode "My Mama Told Me Not To Kung Fu", viper looked crushed when kren announced he was leaving the Jade Palace.Also, in episode "Serpent's Tooth", kren was one of the first to verbally stick up for Viper. kren and viper seem to be able to tell what each other are thinking as well. For instance, in Kung Fu Panda 2, when viper notices a kambing biri-biri being picked on sejak one of Lord Shen's wolves, kren immediately picked up on her concern, as he asked Po if they could help the sheep.
In short, kren and viper are as much a cute couple as they are best friends.

harimau betina, membukakan and Po are perfect for each other. They have clear affections for one another, though they do sometimes have squabbles.Here are some of the main proof of their affections.
In the episode "Bad Po", the bad side of Po called harimau betina, membukakan "good looking" and had an apparent crush on her.The good side of Po also had a liking for harimau betina, membukakan as he berkata her bulu was shiny and looked good.
In Kung Fu Panda 2, harimau betina, membukakan and Po both held paws when harimau betina, membukakan was injured.Also, harimau betina, membukakan because she did not want to see Po get killed, insisted he stay in the prison.
harimau betina, membukakan and Po both Cinta each other, and have a close bond. They are a perfect match.