I don't know that it was the best, but it was the most memorable. I was 15 and Sis was 17. It was summer and we were both home alone for the week. Mom and Aunt Rachel were away at some sort of sorority convention, and our cousins were by themselves, too. All four of us had become anally erotic by the time we were 14. We decided to have our own e-fest, although we didn't call it that. We didn't call it anything, but an e-fest it was. Cousin Eloise brewed a strong tea from senna leaf and cascara sagrada bark powder. We all drank a cup of the strong laxative tea before breakfast. All four of us had drank this tea frequently, because Sis had found the recipe, and we found it had a pleasant taste, and we really liked how it felt as it worked, how fast it worked, and what it made us do. It caused a large BM, the consistency of a thick milk shake. This day, after we all began to feel the effects of our laxatives, Cousin Elaine said, "Let's share our enemas." We all looked perplexed, and Elaine continued, "Let's use Grandma's old potty chair when we have to go." (When our late Grandmother became to feeble to get around, they put an adult potty chair in her room. Elaine was suggesting we release into it. It seemed like a nasty, naughty thing to do, so we decided to try it.
The original idea was for each of us to use the chair, and everyone else to watch, then inspect the results, like Mom and Rachel did. As the youngest, I went first. The girls all watched me poop, then each inspected the plastic tub I had filled. Sis was about to toss it in the toilet when Eloise stopped her. The three girls whispered together, then giggled. Sis said, we're all going to use the same bowl. And so, each girl, as her laxative moved her, used Gram's potty chair. The plastic bowl was about half full of our poop. When Elaine finished on the potty, Sis removed the pot, and added a quart of very warm water, stirring the slurry into a thick soup.
We all watched as she poured some into an adult douche bulb. She said, "Who's going first?" Everyone looked around, and finally, They chose me, as the youngest and only boy. I reluctantly went over Elaine's lap, and felt her lubed finger penetrate deeply into me. She withdrew her finger, then thrust the large douche nozzle into my lubed orifice. Elaine said, "Ready?" and I timidly responded, "I,I,I guess so.." I immediately felt the warm thick mixture flow into me. She asked, "How many do I give him?"
They all answered, like a chorus, "Just one, let's all give each one one bulb from each." And so, I was passed from Elaine to Sis, then to Eloise, getting one bulb from each. Elaine went next, then Sis, and finally Eloise. All finished, we all had three bulbs of our mixed fecal slurry, or roughly 33 ounces each.
We all held the mixture over an hour. It was what we had in us to start with, and actually felt good inside. Of course, It still had a lot of the laxative in it, and one by one, we had to release it. The whole exercise seemed deliciously naughty and nasty to us, and we reveled in what we had done. By that night, we all had cramps, and spent the entire night with bad diarrhea. By the next day, we were feeling OK, but our rectal temps showed 2-3 degrees of fever. This subsided over the next 24 hours, and we were fine. After that, we never had to worry about cross contamination.
Looking back, we were lucky that none of us had any diseases. And this was long before herpes or HIV. Still, we could have really gotten sick. Although we all talked about that day for many years, Mom nor Rachel ever knew, and this is the first time it has been out of that circle of cousins.