Amazing game so far. This is one of the only games I've ever played that doesn't just put different heads on the same body architecture. The creator understands that not all bodies are built the same and that they all have beauty. I truly hope that there are more scenes with the slightly larger girl that is teased in the shower. I can imagine quite an amazing storyline with her. Thank you A&H creator. You do amazing work and I look forward to the next updates.
She will appear, but I would not bet on a story arc in the main game. Maybe a special? Dev has said that he no longer names the side girls, as there are already 23 with various size story lines, which is a lot, especially filling them in by individual story, not by time (which is really fucking hard, and the best thing about this game is making that work without the writing being compromised).
This is fallout from people (myself included) wanting to know more about Tia, who was the first side girl named. Turns out Tia is a reskin of Rosie (from dream sequences) and dev was a bit surprised that people were asking, as she started as a throwaway Amy plot device, and he didn't want to raise expectations.
So, while some of the other girls do have names, they will either never be mentioned, or will only be added in final release. The girl in the shower you mention is named Helen.