Yara Frei, the dominant mistress, teases Cosmo's tight asshole with her tongue, slathering it in spit. She deftly inserts a spike ring, stretching his ring, causing him to squirm in pain. Yara, relishing his discomfort, licks and probes his asshole, her tongue flicking against the ring, sending jolts of sensation through Cosmo's body. She commands him to beg for more, his cries of pleasure-pain filling the room.