Dick Disciple

In a magical world where lady knights can grow dicks and live happily ever after with their beloved princesses, young mage Chrome is busy studying under her busty mistress, but she just keeps messing up! First she turns the queen's lilies into monsters, then she ventures into a forbidden cellar filled with even stranger plants. The plants make Chrome grow a thick, meaty "stamen" of her own. When her master returns, she'll have to dole out some strict punishment to her wayward pupil complete with binding tentacle vines and her own beefy futanari cock!

(Source: FAKKU)