It was with Kara when you help the crazy psyker. Not sure if theres a word limit in posts so I'll just paste the part in scene where cunt tail and cock is in action.
"You gasp with pleasure, feeling her tongue slurp around your inner walls. Reacting on instinct, your body clamps down on the invading muscle, trying to push her back. All you manage to do is wrap yourself around her tongue, making sure she’s able to tease every inch of your slobbering tenta-pussy. Kara’s hands sink into your seam-bursting heinie, groping at your backside while she slathers your hole as deep as she can reach. As she does, your thick, pink flat-tipped horse-shaft squirms inside Kara’s own little hole, pumping deep into her pussy. With every thrust, you can feel her cock throbbing against your huge, cushiony ass, starting to drool with pre. You’re not sure how long Kara can hang on!
She keeps licking and tongue-thrusting until you’re almost on the edge, panting and moaning and clawing at her sheets. You can’t feel bad for cumming, though, with Kara so close behind you. She gasps, cock pushing hard against your raised behind, and starting to spasm. You have just a moment of warning before your lover’s body tenses, and then her cock erupts deep into your tail-pussy’s slit, moaning quietly and bucking her hips... and never stopping her oral assault. Your slobbering, syrupy quim squeezes around Kara’s thrusting tongue, helpless but to succumb to her magnificent skill. You cum, hard, screaming with pleasure as Kara’s tongue pushes you over the edge and your tail fills her twat with cream."
Oh this was the "Take Dick" option by the way. She switches from cunt tail to actual cunt after that and PC fills her again at the end. I guess it's kinda weird because unless my reading comprehension is terrible or I'm tired af, I didn't notice her using PC's cunt tail.