The Third Wheel: Chastity and Cuckolding with a Housemate

The Rules

That first night in chastity was a struggle. I wasn't planning to masturbate, or think about Kate, but knowing that I couldn't made me crave it so bad. It took me a long time to get to sleep, both from the noise of Kate and Aaron enjoying themselves again in the next room, but also just the discomfort of the chastity. When I talk about the discomfort, it wasn't so much the physical discomfort (there was that too, but only when I started to grow), but the mental discomfort, knowing that the two people having the time of their life in the next room had a key which controlled my cock. 

Still, I eventually got to sleep, convincing myself that this was just a brief and necessary step to atone for what I had done the previous week. In the morning Kate would give me the key, I would apologise again, and she would see we could just move past all of this. 

I awoke to my alarm, and headed to the bathroom. On entering, I realised a problem straight away, my usual morning pee was going to have to be a little different. There was no time to grab the key right now, I was bursting. After standing confused, and pulling at my cage a little, I realised the answer was to sit down. The feeling was very strange, I could feel the pressure as I urinated, and the sound was very different. Still, it got the job done, though afterwards I needed to pat myself dry a few times with some toilet paper. I then showered, again, finding the experience a little different in chastity, but still able to clean myself, it just needed some extra attention. 

I exited the bathroom, and as I did, saw Kate just about the close the front door, dressed for work. I quickly spoke her name before she closed the door. 

"Hey, I have to head in early today, might see you around!" she said.

Before she could close the door, "Err, do you have the... er, key?".

She laughed a little, "Oh, erm, Aaron has it, ask him", then closed the door before I could protest. I really didn't want to ask Aaron, I knew that he knew about the situation, he was there for the talk last night, but still, directly asking him for a key to my chastity cage just felt like too much. Especially now, in the cold light of day, without Kate around and her hand on my thigh, it just seemed so embarrassing, how had I agreed to this?!

I decided to at least get dressed, I maybe I could catch Aaron before I left and casually ask him for it, even better, he might just hand me the key. 

I pulled on my clothes for the day, and sat down to eat breakfast. As I was washing up, Aaron walked in wearing just his boxer shorts. The outline of his cock was very clearly visible as he moved, I grew bashful as he walked around. I had seen Aaron walk around the apartment in his boxers before (usually with a t-shirt) but it felt different today. My inferiority was at the front of my mind, I could feel it clearly between us, and we both knew it. His rippling muscles and broad frame also felt more pointed today, just more relevant, as if we both knew who was superior. I tried to push it down, but it just felt so obvious. 

"Oh, hey man, erm, Kate said you had that key?" I tried to say as casually as possible, but it was an impossible task. 

Aaron grabbed some orange juice, and was heading back to his room, "Sure, come to my room when you're ready and i'll unlock you". I didn't manage to get a response in, did he mean that he would unlock me himself? Surely I could do that?

I finished off preparing for work, and tentatively stepped into Aaron's room just before I was ready to leave. "Hey, so do you have the key?" again, failing to be casual. Aaron was sat at his desk, drinking the orange juice and browsing the internet. 

Aaron turned to look at me, "I didn't expect this, but it feels good right?", he leaned back. 

"Erm, what feels good?" I asked.