Other than my mother, the first time I ever recall having expelled an enema in front of anyone was on May 27, 1972. It was a Saturday afternoon and a friend of mine from high school stopped by my house on the way to her home. She had invited a group of high school friends, who were back from their first year in college, to an Indy 500 party (taped delay broadcast). I had been sitting out in the sun on the end of our driveway when she pulled in with her black 1958 Desoto. I didn't know she was going to stop by.
Prior to her arrival, I had brought the red 2-quart open top bag down from the upstairs bathroom where it normally hung, to the basement bathroom. I had already filled it with water and hung it from a coat hook in the bathroom before going back outside to sit out for a little longer. When my friend arrived, I completely forgot about the bag hanging in the bathroom. Now, she knew that my girlfriend and I were no longer dating on a steady basis and her motive for stopping by was to get a sense about how receptive I was to her and I getting together(at last), since she had a long-time crush on me through high school. She had slimmed down since I last saw her at Christmas and she looked great in that V-neck top and those cute orange shorts she was wearing. Let's just say she was really intent on getting into my swimming suit. When I went upstairs to get us something (non-alcoholic) to drink, I didn't expect her to go into the basement bathroom (in fact I had forgotten about the bag hanging there. From upstairs in the kitchen, when I heard the bathroom door close, there was that moment of panic, and then "maybe she won't notice" moment). But she was a nursing student and even as during high school working as a nursing assistant, she had told me about the enemas that were given.
I came back downstairs and waited for her. She came out of the bathroom, carrying the full bag. She had undressed and said something about me being a naughty boy as she held the bag in her right hand. She was absolutely stunning looking, standing there holding that bag the way she did. The way the ceiling lamp lit her from above emphasized her figure and the full red bag she was holding. She gave me a marvelous enema (two bags for a total of 4 quarts) and kept urging me to hold it just a little longer (while she was sucking my cock and/or sitting on my face in the 69 position). When I could no longer hold it, she allowed me to head to the bathroom. I didn't expect for her to follow me in, even though she was carrying the empty bag with the nozzle still inserted into my ass (she liked the way it looked to follow me and seeing the hose disappear between my butt cheeks).. She had me put up the seat and sit on the edge of the porcelain bowl and slide forward. It was a round bowl instead of oblong like they are today. I sat down and she got down on her knees and took my cock in her mouth while I released. When I finally started to cum, I shot all over her before she got me contained in her mouth again. There were a few other shared expulsions between then and the next time I had some very enthusiastic enemates in the 1985 - 1986 time period. But since that first time in 1972, I've never denied someone who has given me an enema access to me while I expel. If they want to join me, I have let them. If they don't, that's okay , too. If they want privacy while they expel, I do respect that.