Due to nerve damage caused by his injuries on starkiller, Kylo loses all control of his bladder and is forced to wear a diaper to maintain his dignity. Kylo is absolutely mortified when Hux finds out, but it turns out Hux is more than a little into it (offers to change Kylo, gets used to Kylo leaking all over him during sex, wetting the bed when he falls asleep after sex etc.)
It can be either established relationship or not, it's up to you. I would definitely prefer if there was a changing scene worked in there somewhere at least.
Kylo/Hux - watersports, humiliation, diapers
Due to nerve damage caused by his injuries on starkiller, Kylo loses all control of his bladder and is forced to wear a diaper to maintain his dignity.
Kylo is absolutely mortified when Hux finds out, but it turns out Hux is more than a little into it (offers to change Kylo, gets used to Kylo leaking all over him during sex, wetting the bed when he falls asleep after sex etc.)
It can be either established relationship or not, it's up to you. I would definitely prefer if there was a changing scene worked in there somewhere at least.