After breakfast, Yara and I got our slave, Cosmo, ready for the day's training. We had fed him our shit for the past two days, and it was time for him to show if he could handle another round. We took him to our bedroom, where we began teasing him with ass licking, cock stimulation, and facesitting. We knew he swallowed better when he was really horny, so we continued to work him up until he was begging for it.
First, I pushed my second load of shit into his mouth. As he struggled to keep it down, Yara mounted him and inserted her poop as well. While she rode him hard, forcing him to take her load, I fed him more of my shit and made him swallow until he had finished both loads.
Finally, Yara allowed him to cum, which was the most perverted orgasm he had ever experienced. As he came inside her dirty ass, she released the semen onto his cock and pushed more of it out, mixing it with the shit that was still inside him. We rubbed this brown and white mess all over his cock, finally leaving him a sticky, satisfied mess.
We were impressed with Cosmo's resilience and stayed hard for the dirtiest part of the training. Now, it was time for us to clean up. We took turns cleaning each other's asses and those of our new toy, making sure there was no trace of our dirty fun left behind. After all, our slave had one more day of training before he could join us in our shameless adventures.
