I have a few ideas
1 Shark species to find and play as, sharks have 2 dicks so this could allow for unique interactions with two holes getting stuffed at once
2 power bottoming (because sub positions are amazing but I can't choose the pose I want when subbing)
3 guards or inmates sneaking in your room to mess with you if you piss them off
Thats all my ideas for now. Thank you for reading!!!