Abby now used a towel to clean all her sweat as you waited with your legs opened and your pussy dripping.
"Time to show you what I'm capable of" she put her hand in her dick, both covered in her characteristic purple shine, then her cock grew to an inhuman level, gaining the shape of a trunk more than a normal one, then it turned black as her balls grew immensely, her cock got stained with some pink spots, resulting in a giant horse cock.
"I hope your ready for this big boy" she now used her two hands to put her monster inside you.
You could feel every inch of her inside you, at the point you looked her cock form a small bulge on your belly, watching how it appeared and disappeared as she fucked you.
Times later she reached her climax, putting all her horse seed inside you, making you squirt like a fountain of cum that covered all the bedsheets.
"I felt like almost died, you completely destroyed my womb!" you moaned uncontrollably controlling your breathing.
"Oof, that was really great, almost felt like a real stallion" she laughed.
You two sat down on the bed after some minutes of rest.
"So you were really that type of witch! Not that I'm doubting but thinking in all the sexy things we could do now" you said.
"Yes, I waited to perfect my powers and do this type of things" she gently kissed you on your nose. "But I want to do a lot of things more"
"Well, there's a party nearby, you could go there a use your powers, it would be fun to watch"
"And what about you?"
"I think I'll stay like this for a while, I'm getting used of being a girl, I don't mind you borrowing my dick"
"I would say the same, lets see how many people notice my new big breasts and cock" she took out a black dress from her closed and got dressed, the chest part was a little tight for her new breasts but she didn't care, also didn't wear any panties to leave her cock hidden. At the same time she gave you some of her clothes and panties, you didn't wear any bra as they weren't your size, "we have to buy new bras later" Abby said.
After getting dressed Abby opened the door. "So what are you gonna do now?" You asked.