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"Request: J2, J3 or Sam/Dean -- Diaper Kink
The person/character of your choice has a diaper fetish and gets off wearing diapers all the time. The other person(s) in the pairing is surprised that the first person doesn't use the diapers, just wears them. So they slip him some diuretics and laxatives to help getting him using the diaper and so they can change him. It doesn't take long for the diapers to become his main way of using the bathroom. Cramps and some H/C as it relates is more than welcome!"
Didn't quite get to the main way of using the bathroom.
- Part 1 of Full! -verse