While waiting for her mother to finish preparing breakfast, Diane was called by her mother who said "Diane, come here to help me. I am very late and extremely excited, I need you to stroke my cock while I prepare breakfast."
"But mom, I'm trying to understand why you changed and how I can get you back to normal, you shouldn't treat so lightly a cock that grew on you just a few minutes ago." Diane said
"Stop insisting on this transformation story. I was born a centauress and I never stopped being one." her mother said
"Think better mom. You and a woman and this bottom of yours is that of a male horse, I am a normal human girl, how do you think you would have given birth to me as a male? Are you going to tell me that you are actually my father or that I am adopted?" Diane said
"I am your birth mother yes. I was the one who carried you in my belly and gave birth through my ass." her mother said
Diane couldn't believe it when her mother said she believed she came out of her through the ass and still thought it was normal.
Giving up the discussion, Diane surrendered to her mother saying "You know what, I got tired of this discussion. I will do what you asked me to. Someday I'll bring you back to normal."
Diane's mother said nothing and went back to preparing breakfast, now having to bend down a little since the horse's body made her taller. Then Diane went under her horse's body and started stroking her cock.
"Stroke my cock more willingly, I want you to make me come before I finish here." her mother said. Diane did as she asked, but more to get it over with quickly than to do her mother's will. This seems to have worked, because in a short time her mother said "Diane, I'm going to come. Take care not to get dirty. Then her mother came. Her mother's cum hit the front of the stove and ran across the floor, yet some of the cum spread over the breakfast her mother had just put on the plate. Diane was grateful that she still hadn't put on her school uniform, as she couldn't help being hit by the cum that splashed on the stove.
Then she had no choice but to eat her breakfast mixed with a little of her mother's cum before getting ready to go to school. When she was ready and as soon as she went through the front door she found her mother on the street waiting for her. To her surprise, her mother was still naked.
"Mom, what are you doing here?" Diane asked
"What question is that? Come on, get on me so I can take you to school."
"Take me to school? Like this? Oh mom, you are naked." Diane said
"Of course I'm naked, centaurs don't wear clothes. Now get on me, we're late." her mother said
So Diane got on her mother's horse body and they left for school.