A young woman, Yara, with a stunning face hidden by a hefty gas mask serenely gazes into the dimly lit room. The scene is peculiar, made more so by her squatting on a clear glass plate. Cosmo watches the unfolding scene below, where Yara applies pressure to the glass plate and proceeds to defecate. The act is visible through the glass, and she even spreads it afterwards.
Cosmo observes the spectacle for a while before participating. The butt is soon covered in the creamy excrement, and he eagerly continues to smear it on the dirty butt.
Meanwhile, Yara lies almost motionless on her back. Only the wetness between her thighs suggests her arousal. Cosmo focuses on the brown mass, using his tongue to lick the ass. His mouth becomes increasingly dirty in the process. Eventually, he stands up to stimulate his cock with his dirty hands, culminating in a satisfying orgasm.