Had a thought regarding the transformation chamber/pod and ChemMaster formulas in Jane's lab at work. Using the existing "create new formula" idea, combining the nanobots, truth, and lust you can create a Bimbo formula that increases lip size and minimum sexual arousal, the desire to wear as little clothing as possible, and reduces intelligence. Getting the target to drink the bimbo formula is a temporary change, applying the formula through the transformation pod makes the change permanent. In theory the permanent change could be applied to the target even if they have not gone through the initial transformation.
Also, if there is an eventual "airhead bimbo" stage the MC can reach, halter / bikini tops, micro mini skirts, collars & cuff sets, along with body jewelry (hoop earrings, nipple piercings, etc) could be an option.