Twenty year old Helen was always at odds with her fourteen year old sister, Liz. Just because they were both futanari, like their mother, didn't mean they would always see eye to eye. The pranks and bickering escalate, until passions boil over while mom is away on a sleep-over date with a married woman down the street. Can Helen keep in control as the older responsible sister, or will urges older than time push her relationship with Liz far beyond mere sisterhood?
Morgan has been invited to dinner to cement the sale of his business to Raygorn Designs. Having met his host's wife before Morgan is wary of the aggressive maneater. His 18 year old daughter Sally suggests she posed as his date for the evening to put the woman off. Somehow Sally takes the role more seriously than Morgan expected.
Katherine gave birth to her son Michael at nineteen. Michael was soon diagnosed with a disorder which made him slow to progress. Their relationship began to change when Michael's special needs matured after he entered puberty.
A story in the Karinaverse (Traveller) Universe
From the "Karinaverse"; now middle-aged (but well-preserved), Scout pilot Karina conceives twins by a young physics graduate-student passenger. Later, he unwittingly impregnates said daughters as well. (Contains futa-on-male and incest, so maybe not for everyone.)
Two brothers farmed potatoes together. One had two daughters and, because Covid prevented them from dating, he felt it was his duty to prepare them to be good wives. His own wife agreed. The other brother had a son and a daughter, and whey they found out what their cousins were doing, they felt like they should participate in getting ready for marriage, too. The result was two families engaged in a taboo lifestyle, which worked as well as the farming did. And the farming worked very well indeed.
A young mother is falsely accused of a crime and convicted. She becomes a pawn and a sexual toy to an unscrupulous Parole Officer, she and her daughter both.
A decent guy is asked to provide the sperm necessary to impregnate his sterile son's wife. This sets in motion a series of consequences that he never imagined when he conditionally agreed to help.