In my teens, my enema fetish progressed to more than just a bag enema with the rectal nozzle. My parents were traveling on the weekends and I had the house to myself. That meant Saturday mornings were for enemas after a night of partying and eating crap food.
First, I would insert two glycerin suppositories into my full rectum. Then, I would insert my mom's 8" vibrator into my rectum. Once it was fully inserted I would slip on a pair of my mom's bikini cut panties.
I would walk from the upstairs bathroom down to the den where my dad kept his Playboy/Penthouse magazine stash. The vibrator would strain against the panties as I walked through the house to retrieve the magazine.
I would look at all the Penthouse models showing their pussy from behind and wonder if they were into enemas as I stroked my penis.
Then I would prepare a warm 2 quart enema for myself. The suppositories were beginning to melt and the vibrator kept pushing against the panties.
I had two criteria for my self punishment. If the vibrator came out dirty I would force myself to hold the enema for 20 minutes. And, If I leaked during the cleanup/retention time I would give myself a spanking while I had a sanitary napkin in the panties.
I hung the bag and pulled the panties down. My penis was engorged as I slid the vibrator out of my full rectum. The vibrator was very dirty and I was to have a very warm enema with a long hold.
Knowing that I had been bad for making the vibrator dirty I put a sanitary napkin in the panties. I pulled them to the side and inserted the long douche nozzle into my full rectum.
The bulge in the panties looked like the pussies from behind in the Penthouse magazine. The enema was filling me up beyond my comfort zone. I was crampy and full and still had 20 minutes to hold before I could release.
I slid the nozzle out of my rectum and it was dirty too. I had to clean up the nozzle and the vibrator without leaking.
The cramps were unbearable as i cleaned up the two items that had been sticking out of my bottom.
One cramp hit and I LEAKED.
I turned around to look at my panty and napkin and sure enough I had leaked through.
I quickly got into the shower. I had to spank myself for leaking. I swatted myself 5 times on my left cheek. I started to spank myself on the right cheek but this time I could not hold it in any more. I let more out and napkin was swollen with water and the contents of my bowels.
I was so humiliated with the mess that I had made in the panties but so turned on by the by how my body felt when I expelled that I could not help but masturbate to a huge orgasm.