You stare back at him, horrified, but too angry -- and proud -- to seriously consider begging for mercy. Even if you could sway him to somehting more lenient, you refuse to give him the pleasure. You'll resist to the end!
However, you are not the only one horrified by the prince's words. Janice seems to be on the verge of tears -- partly from your insult, but also at the thought of anyone suffering like that. She steps forward and goes down on one knee, looking up at Karther beseeching.
"Please, master, don't do anything too cruel to him," she pleads. "After all, he... was my friend --" she can't help but shoot you a hurt look "-- and it's my fault he came here. I agree, he deserves to be punished... but please..."
"Oh, Janice," Karther sighs. His tone, his whole posture changes noticeably as his attention shifts to the vixen. He gestures her to rise. "Come here." She stands and approaches him, where he takes her into his arms. She returns the embrace, leaning into him in a display of weakness that turns your stomach. He whispers into her ear -- too soft for you to hear, though you later learn what passes between them.
"Of course I would not make him suffer so forever -- I only wished to make him sweat. Though he is an asshole, and spending some time as one would do him good."
"Oh my lord," she sighs, then says in the same low tone, "but you won't do that either, will you? Tell me you won't."
"I would never displease you, my love. I shall make him something he will come to enjoy -- at least, given time."
You hear him chuckle, and Janice joins in with tremulous relief. The prince then unclasps her, and she turns to face you alongside him.
"It is decided," he says aloud, the disdain coming back into his eyes as he focuses once more on you. "For spitting on my gift, offending one of my lovers, and daring to assault me, this miserable human shall become..."