I complied, feeling nervous again. I flinched as I saw Doc reach for the tubing and release the clamp. A tiny bit of liquid escaped before he clamped it off again. I heard the cap open on the lubricant again, and again I thought of how Kevin would have made me watch him do all of this. He would have made me beg. In fact, I thought, he would have absolutely loved doing this to me. He probably would have taken me over his lap to do it, maybe spanking me first. Or afterward. Maybe both. I shivered with desire.

I managed to get control of my brain again. It wasn’t right to be thinking of Kevin while Nate was in the process of administering this very invasive procedure, to use his words. Apparently my depravity knew no bounds.

“I’m going to start inserting the tubing now,” Nate informed me, gently parting my cheeks.

“Okay,” I agreed, a little breathlessly.

“I’m using this flexible tubing, since it’s your first time,” Nate explained.

I could hardly breathe as he touched the tip against my opening.

“It’s softer than a nozzle,” he continued, pressing the end of the tube harder against my anus. There was a twinge of discomfort for a moment and then the tube entered me. I felt a surge of moisture in my pussy.

I had to bite my tongue to keep from moaning as Nate pushed the moderate-sized tube deeper and deeper inside me. It was so far up my bottom, deeper than his finger had been, deeper than I’d ever been penetrated before.

“God, Nate, shouldn’t it be somewhere around my diaphragm by now?” I gasped.

“The farther I can get in it you, the more comfortable you’re going to be,” Nate explained. “The longer you can retain the liquid, the less likely the chance that you’ll need more enemas.”

“You’re the doctor,” I agreed, wondering if he could see how absolutely soaking wet my crotch was. Everything between my legs felt swollen and hot.

“That’s as good as it’s going to get for now,” Nate concluded, pulling a little on the tube that he’d snaked high into my rectum. This time I couldn’t bite back the moan of pleasure that escaped my lips. I exhaled and tried to get myself under control.

That had been fun. But now was the moment of truth wasn’t it? Once again, I felt apprehensive.

“Are you doing okay?” Nate asked.

“Yeah,” I squeaked.

“Try not to tense up,” he instructed. “You’re doing very well. I’m going to release the clamp now. You’ll start to feel the water running into you in a few seconds.”

I swallowed, hard, as he reached up behind me. I heard the ominous click of the clamp being released. I squeezed my eyes shut tightly.

Then I felt it, a slowly spreading warmth deep within me. It didn’t hurt at all. It felt wonderful, sort of like getting a warm internal massage. I could feel my whole body starting to relax. I closed my eyes again, not with fear this time, but with pleasure.

“Annie?” Nate’s voice broke through my haze of quiet pleasure.

“Hmmm?” I murmured.

“Would you mind if I massaged your abdomen? It should break things up and help with the cramps.”

“Mmm, okay,” I agreed. “I don’t have any cramps though, I just feel a little pressure is all.”

“Good,” Nate said softly, kneading at my lower abdomen with one hand. I realized his other hand was holding the tubing. I felt an electric jolt from the idea that his hand was so close to my bottom. I forced myself to be still. I wanted to arch underneath his touch and beg him to make love to me. God, I was so hot.

My breathing became heavier as the warm water continued to slowly fill my bowels and Nate continued the massage.

“Are you doing okay?” my doctor asked.

“Oh God, Nate, yes. This is so sick, but … I really like this. I feels so good,” I admitted.

“It’s not sick, Annie. Quite a few patients find enemas pleasurable. And in your case, it’s a very good thing, because you need this. And you may continue to need them until we get you totally weaned off the pain meds.”

“Mmmm, that would be horrible, if you had to do this to me again,” I smiled.

“I guess I’ll have to try harder to get you to like it, then,” Nate said.

I raised my eyebrows. That kind of remark was a little out of character for Doc. I wondered if maybe he was a little excited, himself. I hoped so. I would need another kind of relief after this ordeal with the enema was over.

You weren’t kidding, Nate. You are good at this,” I murmured.

“Are you feeling any cramping yet?” Nate asked.

“Just a little. Mostly I just feel full,” I told him.

“You’re doing great, Annie. It’s almost all in you now.”

I looked up. Sure enough, the bag was less than a quarter full.

“We can stop for a minute, if you like,” Nate offered.

I shook my head. “It’s not bad.”

I realized the flow would stop soon, and felt disappointed. I decided I would tell Nate I needed another one. After he let me get rid of this one, I amended, wincing as a stronger cramp took hold of me. I groaned as a series of even more severe spasms threatened to force everything out of me.

“Nate!” I cried, holding my stomach.

“Here, let me rub your abdomen again,” Nate said, firmly kneading my intestines and stomach. It did help with the cramping, almost immediately.

“Can you stop it now?” I asked, relaxing a little.

“It’s done,” Nate told me. “You took all of it. I’d like to keep massaging for a little while, if that’s alright with you. It will help the enema do its job.”

“Nate, you can touch me anywhere you want. I mean that,” I told him. I hoped he would take me up on the invitation and touch me between my legs. I was wet and throbbing.

“It’s time for the tube to come out,” Nate announced.

I groaned as he slowly pulled the long tube out of me.

“Do you think you can hold the enema for another five minutes?” Nate asked.

“I don’t know,” I gasped. “I’m starting to feel like I really have to go.”

“You’ve taken it really well,” Nate told me. “The longer you can keep it in, the better it’s going to work.”

I whimpered as a series of cramps hit.

“You’re pretty full,” Nate said. “Why don’t you go ahead and expel it? Can you make it to the bathroom?”

I nodded, grimacing, thankful that the toilet was only a few steps away.

“Annie,” Nate called after me, “It’s probably not going to come out of you all at once. Give it about twenty minutes or so.”

“Twenty minutes?” I asked him incredulously, turning toward him carefully. “I feel like everything inside me is going to come gushing out in about two seconds!”

Nate shrugged. “You’ll see,”

I made my way, rather painfully, to the bathroom. There had never been relief like this, ever. I couldn’t believe all that had been inside me. And Nate had been right. The first time I stood up, thinking I was done, I felt another urge to go, and promptly sat back down. It did take about twenty minutes until I was relatively empty.

Quite a bit had come out of me, and I had no idea if I needed another enema or not. I was going to ask for one anyway. This was the most erotic thing I had experienced since the last night I had spent in Kevin’s arms, several months ago.

Mmmm, Kevin. I thought as I lay back down. I wished I could have experienced this gentle pleasure with him. Except it might not have been as gentle with him, I conceded. He would have thoroughly enjoyed using this to punish me. God, I was so hot; it’s like there was fire between my legs. I reached down to stroke my aching clitoris just as Nate reentered the room.

“Well, how are you feeling?” he asked.

I tried to look dismayed. “I think I need another one.”

“That certainly wouldn’t do any harm,” Nate concurred.

“Maybe you should use more water this time,” I suggested.

Nate smiled. “You took two quarts last time. Want to try three?”

“You’re the doctor,” I said.

“That should rinse the soap out nicely,” Nate said. “How did you like the temperature?”

I sighed. “It felt great. I loved feeling so warm inside. But maybe I need, um, a bigger tube?”

Nate’s smile got wider. “I used soft tubing because I thought it would be more comfortable for you. But you’re right. You’ll be more effectively irrigated if I use a nozzle. Do you think you can handle one?”

“I think so,” I answered, feeling that combination of apprehension and excitement.

“How would you feel about trying a large one?” Nate asked slowly. “It will relax your anus and make it easier for you to expel when the time comes.” He paused. “I can dilate you a little before I insert it so it won’t be so uncomfortable,” he added.

My sex was absolutely throbbing. “Okay,” I agreed breathlessly.

“I’ll get it ready,” Nate said. “Lay on your left side. Right knee to your chest.”

My breathing quickened as I rolled into the submissive position. I needed release so badly.

I heard Nate walking toward the bed. I gasped when I saw the full IV bag. Surely I couldn’t take all that, could I? Then I saw the nozzle on the end of the tubing. It seemed enormous, with a series of holes running down the sides of the top.

“You’re not going to stick that thing up me?” I asked incredulously.

“Relax,” Nate said gently. “We’ll work up to it. I’m not going to just shove it in.”

I shivered, curiously excited by the thought of that monster invading my insides. I felt my pulse begin to race.