Interesting point! Someone mentioned in my new story, "Humans and Homesteads" that a female protagonist may be an interesting path. I'll still considering how I would approach it. I have a few ideas in my head, maybe have a heterosexual woman that can stop time and has sex with frozen men, maybe has a lesbian version of that as well. The person that commented in "Humans and Homesteads" specifically pointed out that there we no information if a woman were to put her finger or hand through the "mind control" portal.
As for non-human characters, I do have plans on making a classico Japanese story of an orc or goblin that can stop time and uses it to go to town on women, but I think I will create a separate story for that at a later date. I currently have a third story in the works that contains interspecies sex (Orcs/Goblins/Ogres/Slimes/etc) that I plan on releasing in the coming weeks.
As a side note, I appreciate your input! I was starting to think no one was going to comment on this ever. Makes me sad that people dislike chapters without telling me what they want me to improve!