While visiting a Caribbean Island, a scientist interested in interspecies breeding is introduced to a mysterious substance known to as the Fongaluli leaf. After a hallucinatory episode in which he envisions hybrid man-animals engaged in wild sex, he decides to feed the leaf to a lobster in the hopes of turning it on and crossbreeding with it. He is delighted to discover that the spiny crustacean turns into a nubile nude while under the drugs influence, but finds himself confronted by the fact the she must be provisioned with a steady fix in order to maintain her human form. Traveling far and wide in quest of the miraculous leaf, the scientist encounters a horny giantess, as well as a strange, isolated tribe that practices intra-familial sex. Meanwhile, his eight-legged sidekick referred to as Shirley in her human form uses each adventure to learn the myriad ways of love and human sexuality. Finally, while under the influence of the all-powerful Fongawitch, he escapes with Shirley from an orgy where he is being raped by a gang of wild sex fiends and is forced to make a choice: lose his crustaceous heartthrob to the sea or join her in the briny depths. A surprise ending brings this absurd fantasy to a delightful happy ending.
—Ed Seeman