As I've written before, I am mostly a giver. When presented with options as in give or receive, I like to give. Sometimes, my receiver is actually a partner and we do both, and that's good as well. I'll talk about receiving (which I also enjoy) in another post. I recognize that there are some here who have given more enemas than I have, and they should comment if they will, or post.
1. Many of the enemas I've given have occurred in the context of a MedFet exam. I always informed my "patient" that there would be a rectal exam involved in this, and once in a while she decided not to make the appointment. I can't remember ever telling the girl she would be getting 2-3 enemas in preparation for her rectal exam. I also can't remember anyone ever refusing the enemas after she had made her appointment. Other times I've given, I specifically advertised for a "receiver," and actually had some success. Again, I normally gave 2-3 enemas, and I gave two quarts of warm water for each enema, sometimes while she was lying on her side, sometimes on her back (nice being able to watch and gauge her reactions), sometimes Knee-chest, and sometimes over my lap. The management of the scenario was completely mine, and by the time in the examination she was due for her enemas, I had already done her questionnaire, rectal temp, usually over my lap, panties down but not off (always did that), breast exam, abdominal palpation, and reaction test, then finally her pelvic exam. Sometimes the pelvic came after the enemas, because if she wanted to orgasm, it fit better. I always asked. Sometimes the decision about orgasm came when they made the appointment, at other times during the appointment.
2. I normally brought the equipment I used, and I purchased the enema equipment for that one person. I never re-used equipment unless she wanted another appointment. The equipment was always a standard 2 quart rubber bag, rectal and vaginal nozzles, etc. I used the douche nozzle exclusively for her enemas. It's longer, a bit larger, and flared at the end. I used a variety of lubrication, but for enemas, usually vaseline. I performed a digital rectal exam along with her pelvic, so I had some idea of how "full" she was, which decided a lot about how I gave the enemas to her. I FILLED the bag (always completely full) with warm water, not cold or super hot, leaving no space at the top. I normally used a combo bag because I sometimes needed to lay it down, which was nearly impossible with an open top bag. I did not hurry as I gave the enema, but when insertion time came, I was definite (not forceful or harsh) about that. I inserted the well lubricated nozzle all the way (advantage of a douche nozzle is holes are around the sides), but avoided driving the nozzle into any fecal matter. Occasionally I got a gasp out of her as the nozzle went in, but most girls were silent, the looks on their faces were interesting, though. I held the bag up about 2 feet above her anus, and let the water flow in. If she asked, I stopped the flow for a minute to help her adjust. Most were too nonplussed by the procedure to ask, but occasionally they did request that I stop for a moment. At the beginning and before the insertion, I made it clear that I would give the entire bag, and she had to "take it all." The "patients" generally received without comment, other than the occasional whimper or moan, because when I advertised, it was always for an appointment with a firm, controlling Doc, so the girls always knew what they were getting, even if they didn't know specifics. I have never been mean during an appointment, because that's unnecessary and very bad. You can be gentle and caring, yet very insistent and determined. I gave the enemas at about medium speed. It's actually easier for the patient. I usually gave the first enema with her lying on her side, the second with with her on her back (or, more frequently), Knee chest--bottoms up. Too slow, and they cramp. Too fast, same. I did discuss the possibility of discomfort, and told them something like, "You may experience some cramping. That's natural, and shows that the enema is working by going past fecal matter and gas in the intestines. you know the enema is working when there's a bit of cramping." I got some moaning and whimpering occasionally, and a few expletives, but normally the receiver was pretty quiet.
When it was someone I had gotten to know, I did the same--controlling, demanding that they "take it all," and being certain that they did.
The main difference, when it's someone I know, I've found, is that the enema is either a process that makes certain the submissive submits, or that gives her pleasure. The enema can be unpleasant, and she may want to not receive it, but she knows that she will get her enema(s) when I want to give them, not when she asks for them, because she's doing this for ME.
If she enjoys the enema, or at least wants it for her own reasons, the same things apply, except I try to ascertain what her needs are and meet them, whether it is pleasure, pain, intensity, humiliation, intimacy--whatever. I make every effort to make her experience intense, so that she won't forget what I chose to do to her/she asked for. Sometimes the enema is followed by orgasm, or orgasm occurs during the enema. I hesitate to perform oral because of potential infection--HPV being my main concern, but I love to give cunnilingus while she fills, and especially when she "can't take another drop." Orgasms during an enema can be very intense...Orgasms after an enema are also very intense, especially if accompanied by rectal massage. I've been privileged to give a LOT of enemas, and I have enjoyed every single one I've given. For what it's worth, the girls did, too, even if they were made to take them. There is satisfaction in submission.
If you do enemas, or especially do rectal stimulation (and you should), you have to be prepared for it to possibly be messy, and be ok with that. One of our members, years ago, commented that "if you do enemas, give or receive, shit can be a consequence." It's true. You can't be squeamish about that. Same if you perform anal sex. "Shit happens." You can reduce the chances, but you will never entirely avoid it. However, the process--enemas, and what follows, can be more enjoyable / intense than anything else in the sexual arena, even if unpleasant, embarrassing or humiliating, because they are so intimate.
I have more to write, but I'm out of time. I'll add to this soon.