"Stretch with Wacchi" is the special anime short included in the second Blu-ray volume of Spice and Wolf II, released in Japan at the beginning of November 2009. Looks like Horo took a shameless queue from Isshoni Training's Hinako, and embraced the idea that the best way to lure fans into opening their wallets is by spreading her legs, bending over, and pulling her own tail. Wacchi, ni, san, shi...