Hey! I realized this would be a great feature to implement in the reverse breeding mechanism since you can only use your own stud. Instead of using your own king, you could type in the code of someone else's king and it automatically sends a stud request. People avoid the built in reverse breeding system because they can only breed with their own king, and as the code of conduct says, mods cannot do anything about promise transactions, so your items you want to use for reverse breeding may be at risk if you're not doing it through the system. And Yohimbe barks (if they aren't implemented into reverse breeding yet) should also be a crucial addition to the mechanic!