A few hours later...

You picked up a lacy pink bra out of the pile of clothes in front of you and examined it curiously.

"Yeah that one's not going to fit you," said your aunt, snatching the brazier from your hands. You grinned at her then went back to searching through the pile. Women's shorts, women's shirts, the odd bit of underwear, sometimes a sock. It was like an archaeological dig through your aunt's relationship history.

"How many women have been here?" you asked her, a second mound of clothes that would never fit you starting to grow higher than the original pile.

"They're not all from different women," Leslie snapped, slapping the back of your shoulder. You chuckled, then finally found something big enough to fit over your shoulders; a large green t-shirt that had a print of an orange unicorn design on the front.

"Ah, that was Yvonne's," your aunt said. She dug around a bit and pulled out a pair of baggy purple pants with a stretchy waist. "She was a body builder or something. Met her at the gym." She sounded wistful. You nodded at the explanation and sniffed the shirt cautiously. "They're all washed, John," she said, exasperated. "I'm a lesbian, not a man."

"Heh. Alright, thanks," you said, as she passed you the pants and a fresh towel.

"Shower's in there," noted your aunt, pointing to a doorway past her bed. "I'll set up the sofa bed for you." She gathered the pile of unwanted clothes on her queen sized mattress and dumped them back into a box in her wardrobe. There were so many articles of clothing left behind by past lovers in that box... As you walked past the bed to the bathroom you couldn't help but imagine how many women your aunt must have shared it with. And was it always just with one other woman? Or was it basically like porno in here? You masked your growing erection with the towel until you got into the bathroom... and found that there was no actual door between the two rooms. You looked back over your shoulder to your aunt's now empty bedroom. She had already gone out to prepare where you were going to be sleeping tonight.

A few moments later you were in the shower, the water nice and hot and steamy, fogging up the glass shower door. With your erection still throbbing thoughts inexorably returned to your current future and the treatments you will need to provide your aunt. Your sexy lesbian aunt. Jesus. When would she need her next dose? You weren't able to produce a proper treatment schedule from a template with how late she reacted to her diagnosis. Everything was skewed. But that was fortunate in a way. It would definitely help you in your research. In helping the team find a cure. Abnormal cases were good to study.

Right now you were studying yourself, slowly stroking it to the image of your aunt drinking that glass of milk. This time the mixture was thicker, and it spilled past her lips, running down her chin, her neck, her chest... You squeezed your cock to stop yourself. Remembered your training. You had to save your spunk for treatment. Letting go of your member you sighed and let the water run over you. After a few more minutes, with your erection not subsiding, you gave up and turned off the shower.

At that moment you heard your aunt call your name, and she was close. You opened the fogged shower door and saw the back of her shoulder by the doorway. She was leaning on the wall.

"Aunt Les?" you called out.

"Yeah uh... " she began, then stopped. She seemed to need to catch her breath. "I think I need... I think I need another dose. I'm feeling... fuzzy..." There was uncertainty in her voice but you nodded understandingly.

"Okay well I'm done showering so um... the kitchen? Should I get another glass?"

Your aunt's arm reached into the bathroom and she gestured blindly at the sink.

"There's a cup there. Can you use that?"

Looking to the basin you saw a small metal cup. Since your aunt didn't seem like she wanted to move from her spot by the door and wasn't likely to sneak a peek, you stepped out of the shower. You were dripping wet, but there were bath mats in front of the sink and you tip toed over, your erection bobbing in the cool air. Your aunt could obviously hear your movements and you saw her shoulders stiffen.

You kept your eyes on what you could see of her back as you started stroking. As you picked up the cup with your other hand your aunt asked "Do you want your laptop?"

It took you a moment to figure out what she meant, your senses preoccupied with the mixture of cooling steam in the air on your wet body, and you jerking off again so close to your aunt. Your cock was on fire.

"Nah it's fine," you said, needing no extra material at this point, having worked yourself up in the shower so much already.

"Oh?" said your aunt, surprised. "I thought guys were supposed to be ... visual."

The way she was so conversational with you, knowing that you were just a few feet away from her furiously whacking off, while completely wet and naked, was more effective than any visual aid would be right now.

"Not always," you responded, trying to keep your voice level. You slowly stepped towards your aunt's frame as you stroked, wondering how close you could actually get to her. Your aunt remained quiet for a while but you wanted to hear her voice. "Did you bring milk?" you asked, feeling yourself getting close.

"Mmm no," she said. "I don't think I need it. I hate milk. I probably don't mind the taste of... the other thing? It was just the idea of it, you know?"

"Uh huh," you sighed, now barely a foot from the doorway where your aunt was waiting for your load.

"'Take your medicine' right?" said your aunt.

"Take your medicine-ahh!" you gasped, unloading once more into a cup. You grunted as you expended yourself, working your shaft as jet after jet spurted out of your bulging tip. If you were firing any harder the metal cup would have been dinging like a bell. You groaned long and loudly, not caring how obscene that would sound to your aunt, then squeezed the last drops out of yourself. Grabbing the towel you half-heartedly covered the front of your crotch then poked your head out of the doorway, your aunt moving out of the way when she sensed you.

She looked you up and down with half closed eyelids, which widened noticing how naked you were. Her face was a little rosy and she seemed a tad unsteady on her feet.

"Take this and sit down," you said, pushing the cup into her hand. When she accepted it she went back to her bed and sat down as you tied the towel properly around your waist. That seemed to put her at ease and she instead now concentrated on the cup of your fresh cum in her hands. For a few seconds she just stared at it and swallowed drily, fighting an urge within her that conflicted with a feeling of revulsion.

"Medicine," she whispered. "Medicine." You watched her raise the cup towards her lips, pausing slightly before it touched her mouth. You noticed her give it just the slightest sniff before she opened her mouth and tipped your jizz in. The fluids were slower to remove themselves from the cup this time and your aunt tapped the bottom of it hurriedly, wanting to expedite the process as much as possible. Her expression was again twisted with disgust as your semen slid onto her tongue, eye squeezed shut. She gagged slightly but powered through, the flow getting smoother as she worked out the best angle to hold the cup-o-nephew-jizz. You felt yourself get hard again under the towel and tried to hide it under the pretence of adjusting how securely you had it wrapped around your waist.

She opened her eyes to see how much was still left then tapped the bottom of the cup again impatiently.

"You need as much as you can get," you told her, as per your professional opinion. "Try not to leave any of it behind."

She shot a sideways glance at you and you saw her tongue momentarily dart out to catch the inner rim of the cup. There was another throaty noise from your aunt and she finally pulled the cup away and closed her mouth. She swallowed and grimaced, as if her throat was burning, then shook her head. A couple seconds later she shuddered and a smile returned to her face, and she gave you an appreciative look.

"What happened to the very fashionable sleeping clothes I found for you?" she said, standing up now, feeling herself again.

"Oh right." You turned back sheepishly to the bathroom and grab your temporary change of clothes, ready to leave.

"It's alright you change here, I'll go wash this out in the kitchen," she said, indicating the metal cup, then she walked out of her room to let you have your privacy. On a hunch you put on the borrowed clothes as quickly as possible then...