Q: Do you like to cum in your diapers?
A: Definitely, YES!
Q: How do you masturbate in your diapers?
A: I lay on my stomach in the prone position, with my right wrist wrapped around my left wrist.
I bear down against the lower knuckle of my left thumb, pushing my knuckle against the base of my penis (against the prostate).
I then start humping against the mattress or floor until I ejaculate.
More often than not (when I am by myself), I typically only wear diapers at night.
I usually wear two tranquility ATN diapers and milky white plastic pants over them.
When I first go to bed, I usually have to pee, so I let go and wet my diapers.
Then I roll over onto my stomach and masturbate while I fantasize my older sister's friends watching me poop as a toddler and repeatedly shaming me for being too old for diapers. Its usually quick, and in less than 3 minutes I ejaculate and fall asleep a happy camper.