Assuming you had a way to keep Superman bound and a kryptonite paddle... How would you spank Superman?

Would you use GREEN kryptonite to siphon away his powers and making every subsequent spank hurt him that much more?

Would you use PINK kryptonite that acts like an aphrodisiac to Kyrptonians and have each subsequent spank slowly convert him from a straight superhero to a gay spank slut?

Would you use RED kryptonite and immediately make Superman lose all his inhibitions and make the spanking more fun for you by breaking such a macho alpha?

Would you use SILVER kryptonite and cause Superman to hallucinate that his friends, family, and even greatest villains are spanking him?

Would you use BLACK kryptonite and split Superman into his good and evil sides and have double the fun spanking two superheroes?

This is not meant to be a serious journal or meant as debate of the science of kryptonite as I am not an expert in such things. It's just a fun question... and a fun thought. I look forward to seeing your answers.