Philip arrives home sporting a black eye earned defending his mother's dubious honor from schoolyard taunts. His grandmother gives him a bath and more. Then the nice lady next door teaches him a few tricks. Grandma comes back and teaches him some more. Finally, his abundantly endowed mom arrives and he shows her what he just learned.
This isn't a follow up from Adventures with Mum's, but it does feature the same characters, like an alternate universe type thing. Gemma gets the chance to stay in a cottage on the coast for work, and takes Mike and his friend Scott as it coincides with Mike's birthday. The boys procure some aphrodisiac pills hoping to meet some girls, but unexpected things happen.
When Grace calls her nurse sister to treat her 15 year old daughter's compulsive addiction to an industrial clit pump, the "medical intervention" quickly devolves into a wet, hereditary awakening. Instead of a cure, the exam reveals a messy family secret that leaves all three women soaking the sheets in a shared, depraved release.