A Warning and Diminishing Returns

Josh Watkins had a female sub for second period history. Unfortunately, she was a gross old lady, and Josh realized the error of how brief his command was. It was all women who happened to be teachers, not just women he was attracted to. However, he could still use the Reality Timer to fix things, he just had to figure out how to do so in a way that'd be sexy. Perhaps it'd be better to just undo the change...

WARNING! This change would reverse a prior user change, and will result in a large time penalty! Proceed?

The warning worked, as Josh Watkins immediately stopped trying to undo his prior change. However, that left the matter of what to do about the teacher. Perhaps he could do a bunch of physical transformations again, except on this sub. After finding out the sub was named Miss Barton, he decided to do a quick change for the situation at hand.

Miss Barton is twenty five years old

The change was rapid, as he saw the woman lose decades of age in the space of seconds, and become a young woman who... looked okay. It did mean that when Josh saw Miss Barton staring at him, it didn't feel as gross. Checking his phone, he saw the additional time added was...

Somewhat Interesting Change! One Hour!

An hour. Well, Josh should've expected this, but it showed he really should spice things up to get the most additional time. The app wanted exciting sexual changes to get the most time, and disliked non-sexual changes, along with he expected hating any change that reduced sex. That's when he decided on a much hornier change that'd hopefully give him oodles of time, and one he wished he had made earlier, as it was a better, broader change.

The hornier female teachers get, the sexier they become

To test this theory, Josh Watkins did various things to try to tease Miss Barton. As she looked at him, and the teasing he did, Josh saw her not only get hornier, but also, she did get sexier. It was subtle, such as her skin steadily looking better, or some fat transferring around to give her a more pleasing shape, but the change was total, and quite pleasing on the eyes. Checking the app though caused Josh to discover something quite worrisome.

Interesting Change! Maximum added time hit, full 24 hours

He didn't even know how much time it added, just that it hit the maximum possible time he could have. Josh decided that he'd wait until after school to mess with it again, if only just to top it off at a more opportune moment. The rest of the class proved to be a chance to watch his teacher grow sexier and hornier, as she enjoyed his attention to her changing body. Her breasts grew from being nothing special to, by the end of the class, being large enough to strain Miss Barton's blouse, her ass grew big enough to be visible through even her relatively conservative skirt, and all the while, her skin became ever more flawless, until eventually it looked like she was wearing makeup, or had been modified in Photoshop. All the while, he could tell the woman was getting very hot and bothered, flirting with any guy in class who answered a question from her.

By the time class ended, Miss Barton had become a bombshell, to the point she should've been modeling, not teaching a bunch of high school seniors in a history class as a sub. Which was what made it all the more shocking when, after asking Josh to stay behind, she suddenly pinned him to a wall and whispered in his ear

"If you're going to keep teasing me, you better take responsibility. Meet me after school at..."