Thanks for the reply. I ended up doing it by putting her in the diaper position but not doing anything else to her in that position. I'm thinking that kind of workaround isn't really the intended plan, but I couldn't manage using the traditional methods.
This play-through is already on easy. My main one stalled because the chastity panties never came up for sale on normal. I figure that was also me screwing up somehow, but I wanted to get back to that stage a bit quicker.
Thanks again, and keep it coming!