Story 42: Potara Confusion:
Earrings like the Potara from the Dragon Ball series land on different worlds. The fusions don't have a time limit, like before the Super retcon, and there's no way to separate. These Potara are a bit different, as they only fuse girls.
The first girl fused with a set to have touched one of the earring in the set will be dominant in the fusion, with her feelings towards others being the base, although the other girl's feelings towards others apply if they don't contradict the dominant girl's. The fusion has all the memories of both girls, along with a combination of their personalities. Once a fusion is made, she can't use Potara to fuse with others.
Anyone, male or female, wearing at least one Potara will remember the original timeline, but anyone else will only remember a timeline were the fusion existed, but not the original. Two people wearing one earring in a set each will be able to communicate telepathically, and wearing at least one earring prevents possession, mind control, and memory/personality editing.
The fusion will have parents who gives her all of her traits, and will have all of her originals' abilities, so, for example, a fusion of Hinata and Sakura with pink hair would need one of Hinata's parents (due to the Byakugan), as well as either Sakura's father, or an excuse for why her mother would pass on pink hair.
The at least one fusion needs to be made from a combination that has romantic feelings for the male lead, if the combination exists, so a story starting sometime in the beginning of Naruto would require Hinata as the dominant in a fusion, since, at the beginning, she was the only girl with romantic feelings for Naruto.
Story 43: Two Serenas, One Ash:
At the end of the episode where Ash goes to the mirror world, upon him going back, Mirror Serena, deciding she likes that Ash better than "Crybaby Ash," tags along. She makes it her personal mission to make Ash her boyfriend. She doesn't mind sharing with her other self, since they are the same person, just from different dimensions, anyway, although she won't reveal her willingness right away, attempting to make regular Serena step it up, and act on her feelings.
Some ground rules:
1. As implied by how she acted, Mirror Serena is far more interested in battling than performing, thus, while she's traveling with Ash, she's also his rival, competing in the Kalos League as well (granted, her already obtained badges are worthless in her new world).
2. In this, Serena's middle name is her original planned name, Yvonne. In order to differentiate, Mirror Serena decides to go by Yvonne.
Story 44: Goh-ing to become Serene
After Ash and friends saved Dialga and Palkia from the alternate dimension Team Rocket, Ash, Goh, and their on hand Pokémon, still as eggs, wind up summoned by Arceus as the wave to fix time hits. Arceus has discovered errors in the universe due to Dialga and Palkia's meddling to keep Ash stuck at ten so he can never become too old to save the world or retire.
In addition to the blatant abuse and unfairness to force that on Ash without permission, it has often reset his mentality and caused people to forget Pokémon can know more than four moves.
It's also caused a glitch where 80% of the Poké Balls Goh throws become Master Balls, 15% become Ultra Balls, and 4% become Great Balls upon sucking in Pokémon, with only some Pokémon (such as his Dewgong) having an immunity, which ruins the balance of the universe.
Arceus sends them back in time, but things go wrong, they either wind up when Ash and Serena met in summer camp, or when they were traveling together in Kalos, but Goh is in Serena's body. Goh/Serena finds himself/herself unable to refer to herself as Goh, or anything but Serena, except in her thoughts.
More details within.
Story 45: Ring of Three
This is a story based on another interactive on another site, about an item of the same name, although the rules aren't always kept consistent in paths, but in this one, it will be, with some different rules.
The main male lead of a story finds a ring with a gem, that when pointed at a girl and activated, temporarily stops time, either for five minutes, or until he gives an instruction. The instruction must be three words long exactly.
The ring can only be used three times within a 24 hour period, can only be used on one girl at a time, and each girl can only be commanded once every three days. The ring can be used on guys, but only to turn them into girls or forget about the ring. The owner is immune.
The owner can choose three people to be able to use it, but the instructions they give can't override the owner's. Everyone will remember how things were, but the girl will believe her actions were her own idea, coming up with a reason to herself explaining why she did it.
There are three types of instructions:
Body Change - Can change a boy to a girl, but otherwise, can only make changes possible for the girl, just faster. For example, "have bigger breasts," would make her grow one cup size, but it couldn't be reversed. The changes to a girl take place over a three day period before finishing, with the changes to a guy being much shorter, depending on how fast the writer chooses (once a time period is chosen, it must be stuck with for all future boy to girl changes), it can be anywhere from five minutes to an hour.
Action Control - The girl will do anything physical she was instructed to while time is paused, so long as it's possible, so he couldn't order her to fly unless she can already, but he could make her remember or forget things, or become aroused.
Mental Change - Alters the girl mentally, things like "become my maid" or "be my girlfriend" also would fit in this category. These can happen over a three day period, depending on how opposed they are to it, with things like the maid example causing them to want to.