I finally came up with a continuation of the N/SM loop:
Being teacher to the Senshi was easier than Negi thought it would be given comments he had heard in previous loops about the academic skills (or lack thereof) of some of their number. Negi supposed that the loops were the cause of that. When you are forced to take the same course over again several hundred times, its hard to not pick up the material. By now they could probably recite some of the lectures given by their usual teacher from memory.
The problems he had with the current loop came from what he had come to think of as "The Neigai Question". All of the Senshi wanted to know who Neigai had been planning to marry (And in the case of three of them, try to continue the relationship). The only one of the girls that was on his side in the matter was his "sister", Rei, who tried to keep the harassment of the others to a minimum. All of the Outers were backing the claim of their "daughter", Hotaru. Makoto was siding with Minako, and Usagi was siding with Ami. Mamoru tried to stay as far away from the mess as he possibly could.
Negi wanted to come up with an answer to the question, but not for any reason of romance. He simply knew that if The Neigai Question was left unanswered at the end of the loop, the girls would just keep trying, causing the whole situation to become common knowledge among the loopers. He didn't want to think of how complicated it would get after that point.
Just being himself didn't seem to be helping in resolving the issue. He had managed to inadvertently lead all three of the girls on by doing that.
He had run into Hotaru after school, looking visibly upset over the fact that the other kids in her school were picking on her again (It seemed to be a universal constant that the jerks of whatever school she went to would find or invent some reason to be mean to her, no matter what the loop or her actions). Negi had used an age-changing pill to revert to his child form and spent the afternoon with her. Somehow (Negi suspected that the memories of "Neigai" were coming through, further confusing matters) Negi knew exactly what kinds of activities to spend the time with Hotaru doing to make her feel better. It wasn't until Hotaru kissed him on the cheek at the end of the day and he heard some passersby comment on them being a cute couple that he realized he had effectively taken her on a date.
Negi had enjoyed discussing magic with Ami. She and Lina were the only other loopers that showed any real interest in actually studying magic. All of the other mages learned spells, rituals and techniques, but they never really made the effort to truly understand what they were working with and make new discoveries, they just wanted to learn more of what was already known or figure out how to make the best use of what they already had. Negi knew that there was no way he would be able to have another research session with Ami without a chaperon around until The Neigai Question was answered. Everyone else would be absolutely certain that they would be studying something other than Thaumaturgy.
Ami had accidentally pulled a muscle during a gym class. Noting that she was still rather stiff when he had met with the Senshi at Rei's (Which Rei had declared was off-limits to all Neigai related harassment). Somehow, (Negi suspected Neigai), he knew that if he applied pressure to a few points on Ami's back while rubbing one shoulder, the tension would give out. It had worked, technically. Ami also ended up moaning as if he had initiated some fairly serious foreplay in Rei's living room. Ami had looked rather upset when Rei ran into the room to figure out what the noise was about, almost as if she was expecting his activities to be said foreplay and didn't want it to be interrupted. Negi and Ami still had trouble looking each other in the eye ever since, causing half his class to suspect there was something going on between them (It had taken Negi two hours to get Rei to believe there wasn't. All the other girls believed what they wanted to believe).
And then there was Minako. He had spent the least amount of time with her in the previous fused loops with the Senshi. She had been busy hunting more physically mature boys, and he had seen in her boy-hunting the same sort of behavior that Ayaka demonstrated when her mind was in shotacon mode, something he preferred to avoid when possible. But he had ended up doing something that she considered to be an indication of interest anyway.
Some youma had set up a magical circle that was draining life energy from people visiting the local aquarium. In the fight to deal with the youma, Venus had ended up getting tossed into the air. She crashed into the wall and fell stunned into one of the fish tanks. Negi had been the one to fish her out of the tank and perform mouth-to-mouth. Unfortunately for Negi's peace of mind, the circle surrounding the aquarium was apparently similar enough to certain other magical circles to have a familiar effect. He and Minako were now proud owners of two limited-edition Sailor V Pactio cards.
Somehow, Negi knew that if Ranma was around to see this, he'd be laughing his butt off.