Chanel

Technically, Chanel is not a standalone character - it's John after Penny and MC are done experimenting on him with TFM-1. Yet, given the scale of the makeover John gets if you decide to administer him the serums, Chanel can be pretty much considered a separate person.

Character
To say that Chanel has a "character" would be a significant overstatement, as you can't really say that about a person accurately summed up with two words. In Chanel's case, those words are "hyperactive nymphomaniac". Her demeanour can change depending on what could get her laid easier, and the effects of TFM-1 crank her attitude up to eleven, so she's as authentic as meekly submissive, as sadistically dominant.

Interactions
Your possibilities with Chanel are very straightforward. Whenever you visit her in the sales office, you can ask her whatever you want (befitting your current status), and she will happily oblige. If you have progressed far enough into the relationship with Tasha, you can call her in for the fun. Bear in mind that if you are caged or sissy, it will be you who gets to be in the middle of the spitroast, not Chanel.

If you influence Tasha to dom her, it will take away one timeslot from Chanel's availability, and instead you will get to spectate. If you bring Tasha a coffee during such a show, you will get to decide what (or more precisely, where) will be the finish of Tasha's lesson.

Chanel can be found each morning in the men's bathroom performing her daily ritual. As of now, you cannot join her.