Now for some game-related discussion that I hope gives some direction, and opens up doors to possibilities:
Things are probably going to escalate pretty quickly over the next couple of S-Links as Twilight has to wrestle with her increasing urges. What I'm really looking to do is to feed into her investigative sense where she wants to learn something new, fueled also by the changes to her body and her mentality. So, here's a rough idea of what the next few Links will look like:
#4 - Emboldened by her actions so far, Twilight and the Player rendezvous in the library stacks again. Twilight is a little more bold this time around, explaining she'd like to understand both of their bodies a little bit better. Lots of heavy petting, groping, and ending with a kiss that really throws Twilight for a loop. She sends the Player off, needing time to think.
#5 - After due consideration, and a little time to stew in her hormones, Twilight is ready to try again. And by 'try again' of course that means take things up a notch. She orally pleasures the Player in the library, not quite ready to kiss again, but wanting to explore more. After concluding with Twilight, the Player notices Miss Cheerilee staring after him again.
#6 - The Player enters the library just in time to see Twilight and Miss Cheerilee in an argument. Although it's more Miss Cheerilee reaming Twilight for being irresponsible, and saying she's already left a concerned message with her mother. Twilight is banned from the library until she cleans up her act. Twilight complains to the Player about how more people seem to be taking notice of her, but she doesn't seem to mind too terribly much [Twilight's daytime meets move to either SCC, her house, or another more 'fun' location, further S-Links require access to Twilight's house].
Here's where things (might) get tricky. Because this is a game with a bimbofication aspect, I think there should be times to take advantage of it. So, my general thought is that #6 can actually be split into one (or even two) different routes.
#6.1 - [requires 2+ castings of magic [or a certain stat-associated level of bimboness] on Cheerilee] The Player encounters the argument again, but Twilight is allowed to get her responses out this time. Miss Cheerilee, obviously a little confused and shaken, eventually relents that, as long as things don't escalate any further in the library, she will tolerate this misunderstanding. Twilight's mother is still made aware, but Twilight remains at the library for her daytime meets. Further actions require access to the Sparkle house.
#6.2 - [very optional - requires bimbo'd Cheerilee] The Player encounters the argument again, but this time it's about how Twilight is hogging the dick to herself. This makes miss Cheerilee very upset, and she requests a round with the Player. After some initial reluctance, Twilight agrees. After the blowjob, (possibly double?) Twilight admits that it wasn't that bad, and maybe sharing is fun too. Twilight remains at the Library for her daytime meets but requests any further actions take place somewhere more private. Twilight/Cheerilee bimbo blowjobs unlocked in the library.
Of course, I'd like to have benefits and drawbacks to all of these instances. For example:
#6 - Twilight loses X INT when kicked out of the library - helps the Player push toward a corrupt Twilight since she's not allowed to study as often as she has been prior - Slower INT gains going forward too
#6.1 - Twilight does not lose any stats, helping the Player sty on a more pure route - Twilight blowjob unlocked in library
#6.2 - Twilight loses X Charisma when competing with Cheerilee - same reasoning as #6 - Teacher and Student blowjobs unlocked in library
If that's at all possible, I think it would help to position players to get the ending they want or, if nothing else, force them to find a balance between scenes, grinding stats, and endings. And, because this is the last 'scene' in the library, all three branches immediately converge back into the main story, hopefully relatively seamlessly, afterwards. In each of these, Velvet will have at least some idea that something has gone wrong with her daughter, so will be reluctant to have you over. More on that in later post, if it's determined something like this is within the scope of the game.