Yes, My Master!

Orphans Kung Yang Chu and Fu Yin Chu spend their days at their caretaker's kwoon, a training hall for Chinese martial arts, training to become excellent martial artists one day but there's a problem. Whenever Yang's bubbly butt touches his own shoulders during their flexibility training, he gets an uncontrollable hard on. Whenever he does, by the strict rules of the kwoon he has to be punished by making his body finish what his dirty mind started. Yin has to share the punishment, squirting herself dry as her other half's agile member is kung-fucking the sweetest spot deep in her ass, never missing a single hit. Panting and moaning, they have to obey and perform whatever complex sex position their master requests that take some major flexibility and stamina, until Yang's pulsating member is finally built up to paint juicy hieroglyphs all over Yin's face and breasts. Only then, and after a quick rest, the kung-fuckers-in-training may continue their lesson from where it got interrupted... until the next incident.

Based on the original sketch that my friend Sensuax gave me as a gift! I really loved the characters so much that I was allowed to do whatever I liked with them and so I did X3

Special thanks to my buddy TK for helping with some lovely jokes as usual and with various ideas for them!! ^3^