24 Hour Gender Swap Series by Eric Filler

Penelope wants her boyfriend Finn to clean up his act, but he isn't cooperating. In desperation she goes to the mysterious Mrs. Vantu, who gives her a potion that will make Finn neater. But it doesn't go as planned when Finn turns into a gorgeous young Irish maid named Fiona. As Fiona takes it upon herself to clean every square inch of Penelope and Finn's apartment, Penelope finds herself falling for her new maid. This new gender swap story is 9,350 words.

After eight years of being together, Johnny dumps his girlfriend Sandra. She goes to the mysterious Mrs. Vantu, who gives her a potion that turns Johnny into a woman. Now he has twenty-four hours to find a mate and get married--and consummate it--or he'll be stuck as a woman forever. After he meets the gorgeous, rich Andrew he thinks he's found the answer to his problems, but can he walk down the aisle in time? This gender swap novella is 20,000 words.

Every Halloween, Henry makes his girlfriend Britney dress up in a sexy costume and go to a party at his old frat. Finally getting tired of that, Britney goes to the mysterious Mrs. Vantu and gets a potion that for this Halloween will change Henry into a gorgeous bimbo. But is she going to get more than she bargained for this year?