Hilda earns it

"I'll do it! I'll do whatever you want, just please let me cum! I need it, I need it!" Hilda babbles, desperate for release.

"Then surrender to me, girl," declares the snake. "Agree to be my servant and slave, and you will be rewarded."

"Fine! I'll do it! Just give me what I neeeeed," wails Hilda. "This weak little knight surrenders herself to her new mistress. Everything I have is yours. Punish your little slut-slave however you want, just let me cum first!"

The lamia is taken aback by how quickly Hilda caves, but decides to go with it. "Good, then get ready for your reward."

The snake woman bares her fangs and nips Hilda on the neck, injecting potent venom into the human woman as she starts fucking her again with her tail.

The venom pumps through Hilda's veins, numbing her pain, enhancing her pleasure, and turning her pounded pussy into a blast furnace. Hilda moans and coos as it overwhelms her senses, both her mouths drooling as she has the single strongest orgasm of her life.

Her eyes roll back in her head and her body weakly spasms and twitches as she blacks out from the pleasure overload.