The basic idea works but something seems...off

You make your call and get a response soon after. You keep calling one another, finding your way through echolocation. Eventually you hear a call almost right in front of you. Stumbling through the dark and the low plants, you hear someone shift position. "Kesa?" you call out. She mewls at you, and you feel her grab you. Like before, the two of you are a sweaty ball of limbs as you fumble in the dark. Awkwardly, you get things figured out, and you begin pounding your illicit lover's hypersensitive pussy. She still doesn't understand volume control, so you have to put a hand over her mouth. After you make her come a few time, you unload into her anew, stifling your shouts of pleasure. The two of you lay there for a while, stroking and kissing each other wordlessly before parting ways.

This continues for about a month, each night slinking out to mate your she-wolf. But your lovemaking starts to feel strange. Kesa feels different somehow, and her lovemaking style seems to change, despite being consistent before. You still don't speak, and you still cum in her, but other than that it's changed. You decide one night to investigate. You bring an unlit torch and a flint along this time. You call out like before and find the other howler methodically. You eventually get to where you know someone is on the ground in front of you. With butterflies in your stomach, you light your torch. You hear Kesa scream as the torch lights. But wait a minute! The naked woman in front of you...that's not Kesa!

"What the hell is going on here?!" you yell, forgetting to keep quiet. The young woman cringes as you yell, and looks to be on the verge of crying. "I'm sorry, I'm so sorry milord!" she blubbers, sobs causing her to heave. You have not time for this. "Where's Kesa?! What is this?!" She cringes again, crying now. "Kesa's back in the village!" she sobs. "What do you mean?! Explain yourself!" you seethe, remembering to be quiet now. You duck down, trying to keep your torch low to the ground. "It's Kesa's doin'!" she says, indignantly through her tears. "She's been chargin' us village girls for the secret of layin' you! She takes our coins, then tells us to howl at ya, be quiet, and take our poundin'. I paid my fee so I could get filled, like my sister and best friend, and all the others that already did." You stand aghast. How could she do this? Your blood runs cold at the thought that you may very well have impregnated half the women of the village that works your castle's grounds. "Why are you girls doing this?" you ask her. "Why? Why not?! We's just lowly peasant 'n serfs. Why wouldn't we want to be fucked by a handsome young king, maybe get knocked up with a real prince in our bulgin' bellies like Kesa, instead of some dirty old man's seed?" Your head starts to spin. How could this go so wrong?