My mom took enemas all the time. Her usual routine was to prepare and take an enema after she had given me mine. After I'd pooped she would take her enema or enemas..
My mom derived sexual pleasure from them. giving to me she would get this "faraway look" in her eyes and make little grunting and moaning sounds while she rocked back and forth on her heels...She'd seem to "freeze" and close her eyes and make more of those grunts and sorta like clear her throat. I later learned that was her orgasming...
As a kid several times I would come back to the bathroom door and knock and tell mom that I needed to go poopy some more. As we only had one bathroom, she would tell me to come in. Mom would be on her knees leaning over the edge of the tub, the big red rubber enema bag hanging from the towel rod, just like she did it for my enemas, and the big black enema nozzle (the same one used on me) was inserted in her rectum. As i sat there and pooped some more, she would move her hand between her legs and make those little grunts , I'd heard before...This was her masturbating and she'd make a big coughing like sound and moan and grunt and sorta slip down to her kees and lean over the tub while she waited for me to finish again...I remember her getting up one time and removing the nozzle from her rectum, and seeing Vaseline glistening on it and her sorta using her fingers to rub the Vaseline some...She then asked me to "hurry up, baby" .."mommy need s to go poopy now"..I still remember her standing there totally naked , at least 2 qts of warm soapy water in her bowels, and her rubbing her tummy...WOW...
After I finished I'd sneak back up the hall and wait outside the door and listen to her evacuate...She was so verbal during that too...
I only did this a few times as I didn't want her to think I was 'spying" but it sure was erotic for a little 8 or 9 year old boy...
Mom always kept the enema bag hanging on the back of the bathroom door when it wasn't being used....Right under the housecoat she wore to give me my enemas, and the one she shed on the floor when she was taking her enemas...