She thinks she can handle things herself.

"OK K-T, I don't need you anymore. I have things in hand. You can go back to what you were doing while I run some tests and analyse the data."

K-T stood there, holding his hand towards her.

"What are you waiting for?" she asked him.

"For you to give it back to me."

"I think there is some sort of misunderstanding, I need to keep this specimen with today to monitor it and analyze the working of my portal device. I think I should be done this week if you are not here to bother me. Might take a month or even longer if I'm constantly distracted by you standing there next to me. This is important research that will probably revolutionize the entire world. You might end up as been credited for the integral part you played in transforming travel forever."

Presented like this it would sound really petty if K-T insisted that he couldn't spend any time without his cock. He simply put his shorts back up again and went back to his room.

Once there he stripped again and looked at his crotch more closely, holding a small mirror he found in the pile of boxes occupying the basement.

He discovered that the ring wasn't actually fixed to his body, it was actually stuck behind the other ring, itself being pressed against his body by his balls. He could move it a little and see a tiny bit of the base of his dick between the ring and his body. Nothing he could use though.

Getting back to what he was doing wasn't an option. Watching porn without access to his dick and knowing someone was watching it constantly would be pointless and frustrating.

He decided instead to sit down in front of his computer to play some video games or watch videos on-line. It was a bit awkward to sit with the ring pressed between his tighs.

Suddenly he could feel ten delicate gloved fingers taking hold of his cock. For a moment he had thought that his sister would just leave his junk sitting on the table, running diagnostic on the ring to improve her portal technology.

He had said that everything felt normal, but it wasn't exactly right. Now that she had lifted his cock he could feel his balls swinging and hanging at an angle that didn't match his own body. It was a very weird but not uncomfortable feeling. Having stroked himself almost enough to cum so short before there was very little chance that he would be able to go soft again without cumming fora very long time.

He was torn between his desire to cumand his fear that his sister touching his dick would make him spray his load everywhere. He knew that his twin sister was a very sexy girl, but the fact that she was his sister and her history of pranks or plots to get him naked and embarrassed in public gave him very conflicted feelings about her. But this situation, with fingers touching him out of sight was remote enough for him to forget about such reserves.

He could feel his balls swing wildly, his sister was probably walking around holding only his dick and without his body to rest against his rather loose ball sack was swinging to and from like a pendulum.

K-T gasped audibly. His dick had been inserted horizontally into something. He did not know what it was, it felt tubular, it was wet and there were a series of bumps inside.

He could feel nothing else for a bit and suddenly the fingers returned, targeting his balls this time. His testicles were gently poked and probed for a while. He could feel them being grasped and slightly pressed, cupped and lifted only to be let go to drop down on their own weight.

This was putting K-T on edge, he was feeling an urge to grab and stroke his cock but he could see between his legs that there was nothing here, his dick and balls still being in the lab two floors above.

He could now feel himself getting removed from whatever it was that his sister had showed him in. It could feel her playfully shove him in and out of it a few times and as he was about to explode simply take him out of it.

He then was wiped of the jelly feeling liquid that covered his cock with some tissues and...

He could feel part of himself falling, only to suddenly stop by being squished between two unidentified lumps of warm flesh. This had been almost enough to make him cum, almost...

Unless his sister had wiped him down above her head this couldn't be her boobs, the only solution was that she was sitting on her chair with his erect dick placed between her tighs.

K-T realized that he had stopped doing anything else than focusing on his dick for quite a while. He could only think about how much he wanted to cum.

Emily seemed in no hurry to remove his cock from between her legs and it made K-T wonder about what she was doing. He really hoped she had not just been absorbed by a new idea and wouldn't spend hours on her computer having forgotten about him and teasing him to agony.