Minerva is an extremely rich and eccentric woman. She has a passion for science, and loves it almost as much as spending her vast fortune. She had an island made for herself, and when it was finished, had it destroyed to make a better one right next to it. She frequently spins a wheel to decide which charity she will donate a huge sum to.
On her island home, she has taken four young nekos. Even though 2 of them are boys, they all are dressed as maids and tasked with cleaning her large home. At least, officially... really she spoils them rotten, giving them every comfort money can buy, and all they need to do is clean and be cute.
The best part? Their collars. Using a remote, she can switch on a camera to watch them and use the collars to do many interesting things. If they'd been misbehaving, she can cause them to suffer the strongest orgasm possible in a second, enough to send them reeling and not able to remember their own names or which way is up or down.
She can cause them to stay at a certain level of arousal, make them unable to achieve climax, or even inspire powerful affection for an object or fellow maid...
For instance, while one of them is isolated, she may turn the levels up until they can't stand it anymore and pleasure themselves in what they think is a private hidey hole, when really she can see them wherever they are.
Or better yet, have them all riled up for the whole day, and then when they're together, have 3 of them suddenly so powerfully attracted to the forth they simply can't help themselves from a gang rape.
Or is shes feeling mean, make one attracted to the kitchen table shes cleaning, just so she'll get caught humping the corner.
The pill she gives them can also switch their parts. Imagine the boys confusing when they find all they have is a vagina, and are suddenly getting groped and dominated by a shy, yet hopelessly horny pair of dick girls.