In a magical mishap while fighting over a cosmic artefact, Shining Armor and Chrysalis have fused into a single pony. Now Cadance whisks them off to her bedroom ... to 'investigate and cure them' of course.

Contains: fusion, gender ambiguity, futa(ish): pony with male and female parts and an ovipositor, dubious consent, two minds in one body, marital sharing, analingus, deep analingus, impregnation, double penetration, anal egg implantation, impregnation again, self-impregnation, cum-swapping.
Cover image made with vectors by kaitykat117 and JayCee (via ponyar fusion).