I feel like crying genuinely since I know it’s disgusting and purely my fault. (This happened yesterday evening by the way)

I’m a young adult male who lives alone, so I can do whatever I want in my living space. Anyway, this “cum bottle” situation started when I bought a pink bottle of “extra moisturised shampoo” of 1 litre about a week and a half ago, so it’s pretty big. One day, out of nowhere while showering, I had the thought “what If I came in this bottle,” so I did it. I found it fun and exciting, so I’ve done it every day since I bought it, I don’t know why and can’t tell you why, it’s just one of those sporadic thoughts i have sometimes.

Two days ago I got a friend who was planning on staying over a few weeks as he’s having some personal issues I won’t go into. I’m fine with it, having company isn’t bad, but because I’m not used to it I don’t hide things. My shampoo bottle was located on the floor of the shower, out in the open. Yesterday, my mate asked if he could have a shower, I said yes without a second thought. It’s only today when I went to have a shower myself I realised the shampoo had been used, since I could see the pump mechanism was half full and there was some in the floor, I’m making sure to hide my stuff from now on

I’m beyond mortified and never plan to tell him. Sorry for the horrible “storytelling” or however you’d put it, these are just my raw thoughts…

TL;DR – came in shampoo bottle multiple times, friend staying over used the shampoo