The Fisherman and his Wife

When Helmut Schadow meets a magic octopus at sea, he soon finds himself involved in increasingly strange events. His wife, unable to cope with aging, decides to use the beast's magic to improve herself, spiraling into megalomania.
This story is a retelling of the classic Grimm fairy tale, but with a few weird twists.
This work of erotic fiction contains slow female muscle growth (FMG), feats of strength, obsession and fetishism.
All characters are adults.