The Pack's Dragon
She felt the change of texture against the sensitive skin of her inner thighs, and the water splashed and sloshed over the edge of the tub in a way that she knew would be soaking the bath mat through and probably require mopping up as his tail unfurled, the long fins draping out of the bath and swishing like the irritated twitch of a cat.
The muscles of his tail moved beneath her, and the scales were smooth and glazed with the mucin secretion, but also when he shifted, hard edged and textured. The perfect beauty of his cock did not change, but the fin he spoke of brushed against the back of her hands, and from the way he moaned, she realised that the inner edge was sensitive, whilst the oute