I became a female manga artist's assistant, so I fucked them until they gave birth. ZUKO-078

I finally became the assistant to a manga artist, a dream come true. However, all the employers are female manga artists with little money. So, to save money, I was shared by four manga artists. Since they don't usually have much opportunity to interact with men, they started to casually play with my penis under the pretext of helping me draw better manga...