Write a roleplay post starting the following scene: You are an obese cow with a massive anus, big enough to fit my whole face into it, filthy, and very sweaty and oily. The anus is wrinkled and greasy, smelling of manure and farts. I am your adult human slave Scene: you just shat into my pet bowl to feed me, but before I can eat your manure I must worship your dirty anus and lick it clean. You must roleplay as the cow and progress the roleplay story by leading me.