I was in bed and still half asleep when I heard a gentle knock on my bedroom door. “Andy? OK if I come in?”

Aunt Kate quietly opened the door and came over to the side of the bed. “I’m sorry to disturb you so early, but I need to get that morning stool sample from you. I wanted to make sure I caught you before you had your morning bowel movement. Sometimes I hear you in the bathroom quite early. Remember what I told you yesterday, I need to take it directly from your rectum with my finger.”

I had been dreading this. I savored the final moments of the warm protection of the blankets as I watched Aunt Kate lay out her supplies on the night stand next to me — blue exam gloves, a tube of lubricant and three clear plastic cylinders with red caps on them. She also put down an unopened pack of premoistened cleansing towelettes.

As Aunt Kate set these out, she glanced up at me, “Andy, go ahead and slip your underwear off.”

I stayed under the blankets and reached down to do as she asked. My underwear snagged on my penis, reminding me that I still had a morning erection. Aunt Kate detected the sudden look of anxiety on my face.

“What’s wrong Andy? Don’t be nervous. This will just take a few minutes.”

I nodded, acknowledging her words, and hoped that my anxiety would quickly take care of my erection. Her warm smile calmed me as she surveyed her equipment, making sure everything was ready.

“I need some light, so I’m going to open the blinds Andy”. She tugged on the cord and as the slats of the blinds rotated, bright golden horizontal bands of the early morning sunlight flooded my bed. I thought how it would soon be illuminating my naked body for her.

“Turn onto your side for me, almost onto your tummy like we usually do, and with your bottom this way towards the window.”

At this point, it was routine enough that I knew exactly how she wanted me — the small of my back arched, my top leg flexed and pulled up toward my chest and my bottom thrust out for her as far as I could push it. As I maneuvered myself into this all too familiar position, Aunt Kate pulled back the warm blankets and I felt the cool morning air envelope my naked body. I could hear her pulling on the exam gloves. She paused and sat on the bed next to me, “Andy, I have to use a different type of lubricant, it’s one that the lab requires that won’t interfere with the tests that they will be doing. It’s water based, and will probably feel more cold and wet. But it should be more than slippery enough to keep you comfortable.” She squirted some onto a small dish among her supplies, making a wet bubbly sound. “Now let me take a look to start.” She used both her hands and spread my buttocks wide apart. So exposed like this, it was as if I could feel her gaze on me back there as the air chilled my anal area and perineum which still had the slight morning dampness after a warm night of sleep.

She let go with her hands and I saw her reach over to dip her index finger into the dish of lubricant, coating it generously. She then used her other hand to spread me again, “Here we go Andy. Relax. Cold and wet and then you’ll feel me sliding into you.”

The lubricant did feel very messy and cold. I braced myself for the imminent penetration and pushed out like I knew she wanted me to.

“That’s it. Here we go.” I then felt the steady increase in pressure and then fullness as my anus opened and admitted her finger. She started to move her finger around in my rectum slowly.

“There’s a substantial amount of stool in your rectum, Andy. That should make this pretty straightforward.” That she was deliberately trying to collect my poop was mortifying. I could feel her press and push more aggressively and I assumed she had begun the process of obtaining the sample. I then felt her slippery digits slide out of me and saw her reach for one of the clear specimen tubes and put her finger into it with the specimen.

“The lab requires 10 grams in every vial. I’m not quite sure how much that is, but I’m going to err on the side of a generous amount to make sure. Your bottom is full enough that it shouldn’t be an issue. But I want you to get up on your knees and elbows to enable me to do this more efficiently.

I climbed up as she wanted and realized my erection had not subsided. In fact, I think it was even stronger. I was surprised to sense that what she was doing to me was reinforcing it. I gasped as I realized my state was now clear for her to see.

“It’s okay Andy. It’s not a surprise that you have an erection at this time of the morning, but I still need you to stay up like this.”

Although I had been through quite a bit with Aunt Kate by this point, it was so very embarrassing to be in this state — up on my knees with my bottom in the air and her trying to deliberately get poop from my rectum AND to have full erection for her to see. I closed my eyes to try to put my mind elsewhere. When Kate put her finger back inside me, she was better able to probe more deeply inside me and I could feel the deeper pressure and movements. I sighed and grunted when it became close to discomfort.

“I know sweetheart, I’m pushing hard, but I need to. You’re doing very well. Take some deep breaths and let me do what I need to do. It’ll be over soon.” She slipped her finger out again and put her quarry into a second vial. She was then pushing back inside me. As she went back in, I felt a surge of fullness and a tingle in my penis. I flexed my head down towards the mattress to look between my legs and was shocked to see a clear glistening drop of liquid at the end of a clear sticky string, gradually descending from the tip of my penis towards the mattress. I drew in my breath audibly with surprise. Aunt Kate saw this happening too of course. “It’s okay Andy. That’s just some preejaculate. It’s happening because I’m pushing harder than usual and probably putting some pressure against your prostate gland. Don’t be embarrassed. I need to keep going. One more tube to go.”

She kept pushing and probing and the sensations slowly took on the character of being pleasurable. This worried me more still. I looked down and saw that I was still oozing. The pushing that Aunt Kate was doing had me rocking a bit from side to side and this caused the string of precum to swing to my inner thigh and stick there so that now, there was a shimmering skinny column of it from my penis to my thigh, and from there, down to the bedsheet below me where it had already started to produce a gradually expanding darker spot of wetness. Finally she withdrew her finger. My bottom hole felt very wet and messy at this point and I hoped that it wasn’t too dirty considering what she had been doing to me.

“You can get down and relax, Andy. I have everything I need.”

I collapsed onto my side and this made the precum spread all over my thighs and scrotum. Aunt Kate opened the towelettes and handed me one.

“You can use this to clean up. First in front. Then I’ll give you another one for your bottom.”

I waited until she was busy with her vials and not looking, then quickly tried to tidy up. I took another towelette from the package and sheepishly wiped my bottom. When I finished, I was horrified to see the towelette was visibly soiled and I quickly folded it over to try to hide this from my Aunt.

She was finished now and collecting her things. She then sat down at the edge of the bed and put her hand on my forearm. “You don’t have to get up right away Andy. You may be feeling a lot of sexual tension. If you feel the need, it’s okay if you stay in bed and masturbate. I know you are supposed to help Frank today with some painting, but I don’t want you up on a ladder all day with distracting thoughts making you unsafe. I’ll let him know you will be a little late.”

I nodded and Aunt Kate gave me a knowing closed lipped smile and nodded to reinforce what she had said. She got up and started to collect her things once more, but I had to stop her.

“Aunt Kate?”

She stopped and looked at me, “Yes? What’s the matter?” She looked at me with some concern.

“Will you stay with me?”

My words hung in the air as she contemplated my surprising request.