Helluva Trio pg 62 inks (commentary) (Patreon)

Millie likes to play sadistic but I don't think she actually is, right? She enjoys violence and killing targets, but she's not an abuser.

More than anything though, I just wanted to have a scene exploring sexual boundaries. Just because you're partner agreed to do one thing doesn't mean that they'll be okay with the next, even if it seems like a natural progression to you. Millie normally knows that, but it's still possible to make mistakes.