You take the initiative and break up the cuddling, confusing your partner as he watches you shuffling away and further down his body. His ears droop in disappointment at the cuddling session cutting short... before they nearby shoot up from the unexpected shock and ecstasy. He goes into spasms and bleats within moments just from your gentle kneadings against his cock and balls, legs kicking and curling so hard the toes clump and merge into a pair of black shiny cloven hooves. With a loud bellow, he sends his seed splattering all over your stunned face and frozen form.
'Wait, what?... That's it...? I haven't even...'
He averts your look of disbelief.
"You better make me come first this time..." You snap at him, feeling insulted.
He flinches sheepishly under your indignant glare, apologetically lapping at your lust -soaked loins when you wordlessly turn around and present it to him. You furiously lube his dick with a few swift jerks, and - ignoring his yelps of protest - sliding it into your mouth. You bob up and down his 'toostie pop' and suckle it furiously, your tail lashing at him in challenge. He picks up your signal and speeds up the pace in response, burying his muzzle into your behind with the same gusto.
"Nnngh..." His tongue feels really sensitive rubbing against the walls of your cave, your pent up lust earlier isn't helping either. You're starting to spasm and curl a bit under the pulses of pleasure coming from your vag... pen... wait, what happened to you? For a moment terror fills your heart as you stare at the muzzle sticking out of your face, your hands ache and fingers start to blacken and fuse together - lengthening and thickening into a pair of forehooves before your very eyes. You... You're turning into an animal, you have to... You both choose that moment to climax at the same time, washing you away with a torrent of sensation you've hardly experience before
'Oh... Ooooh...' Your mind whites out from the sheer bliss of the dual orgasms, shelving your silly thoughts and worries away and guzzling down his cum like saltwater taffy. You bleat and bask dreamily in the afterglow, neck stretching out longer and longer, uncaring that you're apparently turning into some sort of deer. Why would you, you feel great - You just want to breed and have fawns of your own, and the smell of the dick still throat-deep inside your muzzle is driving you crazy.