The wolf relaxes his large tailhole as he feels you push against him. You suddenly feel the wolfs ass opening, letting your face inside as you keep pressing, amazed with what is going on.

Soon your whole head is inside, the wolf groaning in pleasure as you stretch him wide. You keep pressing into him as you feel an urge to continue, your shoulders starting to stretch the wolves tailhole more and more before finally sliding inside.
The wolf lets out a howl of pleasure. You finish chewing and swallowing the pieces of shit you got left inside your mouth, opening your mouth every now and then to get to remains of the wolves shit as you move deeper into him. You no longer can hold the canines waist with your arms as they starts to slide into the wolf, his anal muscles taking over, pulling you inside.