Mori no Kuma-san, Toumin-chuu.  

Caressing My Hibernating Bear, Toumin-chuu ni Chikubi wo Mederaremashita., Caressing the Nipples of My Hibernating Bear, Morikuma, 森のくまさん、冬眠中。

In the forest resides a bear named Nowa who takes in a puppy called Airi. Prior to entering hibernation, Now was concerned that Airi would not wean properly. Following several months of slumber, Nowa awakens with delight as Airi, now an adult dog, greets him by licking his nipple and expressing her long-awaited reunion.