Rob scrambled backwards, instictively trying to get away from what he was seeing. The changes still progressed even as he backed into a boulder a bodylength from the buck, as a tail pushed painfully from his... her rear. (S)he stripped off the shirt as it grew painfully tight from her barreling chest. They both stared in awe as white fur crept up her belly to the chest, her sides framing the view in tan fur just before the pecs swelled out into pert grapefruit sized furry breasts. Rob moaned "Oh my God!..." as the changes swept up her neck and down her arms. Fingers merged and shifted while her neck grew three inches. Rob gasped in pain as her ears and face stretched and reshaped, untill finally she realized it was over.
Rob became aware of a strong, musky scent. Looking up, she found the buck leaning over her in concern. Rob froze submissively as the buck checked her over, rubbing and kneading her body. Finding her ok, he picked her up and carried her into the forest, to a small glade, his bedding spot, now improved with pine bough bedding and a branch lean-to. Rob was shocked to find her panic nearly gone, drawing comfort from the protective smell of ..her buck?
The last traces of fear dissappeared as the buck nuzzled her neck, making her weak in the hocks and very damp in her sex. Her new hoofhands slid around his waist as she looked up into his brown eyes, "Please be gentle, Bambi..ok?"
The buck smiled lovingly as he stroked her longish hair before kissing her. "Mmmm, Bambi sound..nice name.. What yours?"
She giggled. "I guess Roberta..." then squealed in delight as his fingertips slipped into her. Her white tail flagged as he laid her on the bedding and settled atop her, nuzzling her breasts as they rutted.