For years, I used to lie on my stomach and rub my stiff penis on the sheets. When possible I would have a dildo or old fashioned douche noccle in my anus.
This was my way of relaxing and I would usually fall asleep right after ejaculation. Many times I would wake up with the dildo dtill in my rectum.
I did this for years at home, school. Air Force and even after I got married.
My usual fantasy was receiving or giving an enema.
Any others Jacking Off this way?