Just as you were getting into the flow of things, you feel a yank of your arm. Naturally, you try to pull out, but you know you can't escape. Your head reaches the hole, and in a few squelchy seconds your head is inside, along with one of your arms. You feel your conscious slipping but something is keeping you awake...soon, you're waist deep in cow ass. The warmth was nice, though, and you feel your mind wandering in this insane situation...did other people fall for this? The contractions weren't ceasing, so this bovine must know what it's doing...were there really that many other people who wanted to fist a cow? In your mental absence, you're pulled past your hips and by far the most unusual thing was the lack of fecal matter. Perhaps a creature that can pull a fully grown(ish) human up it's ass didn't even want to digest you...how does it gain sustenance then? Soon, your bare feet reach the anus, entering the rectum almost painfully slow, being surrounded with a tight red tunnel like the rest of your body...soon, the contractions stop and you hear a voice, seemingly perfectly audible despite the tonne of flesh surrounding you..."First things first, I'm telepathic. I can't really talk all that well being a cow and everything". Considering your current situation, you weren't surprised that the cow that pulled you inside it's wide rump was telepathic. Why the fuck not. "Second of all, I'm not here to digest you. We're all here to have fun, really." "fmfmffaarghmfmf" "Think the words, dummy." "Sorry" you thought, feeling rather stupid, "I see you're confused as to why you haven't suffocated yet, good question!" "...I didn't think of that, actually." "I know, and figured you wouldn't for a while yet. Anyway, you're body is under a constant supply of monosodium glutamate, a far more potent form of glucose, so your body is relying entirely on anaerobic respiration. But you, being a dummy, probably don't know what I'm talking about, and are wondering how I can possibly know human science. Spoiler - I'm not gonna tell you."
Fair enough.