The app was right, that was the best bus ride ever. Erin got off with a now-woman drooling milk from mouths that replaced her nipples. Walking a few blocks Erin reached Trish's house. It was a single story house in a neighborhood of double-story homes with a larger footprint to make up for the lack of second floor. The backyard was big enough for a centaur to trot around.
Erin rang the doorbell and heard the clopping of hooves on the other side as Trish opened the door. The rainbow centaur was slightly taller than Cindy with D cup breasts. Any signs of the milky mess from earlier were gone, and it looked like Trish might have put oils in her coat.
"Trish you look good! Sorry about what happened to your coat earlier." Erin greeted.
"Oh don't worry about it, it wasn't you fault - I stood too close to that cow. Come in I got food, you hungry?" Trish invited
"Don't mind if I do." Erin replied and entered the door, although she had some trepidation. Some memories floated up that Trish was not a good cook—with any luck this time she bought takeout and disguised it as her own cooking. Unfortunately it was not to be, and the meal looked sad and unappealing. The app could fix this.
"The human is hesitant to eat the terrible meal."
With "terrible" changed to "wonderful," the food now looked much better. The vegetables were now perfectly grilled and the meat looked succulent.
Trish apparently saw the look on Erin's face and challenged, "what, don't you like it? I worked hard on it."
Erin tried to save the situation, "I do, I do, it looks great. I know, I'll take a picture." Uploading the pictures to instagram seemed to satisfy Trish. They both took their seats, Erin in a chair and Trish on the hardwood floor, and began eating.
As they ate, the sly glances Trish gave Erin kept getting longer, and the pressure of her horsecock kept getting stronger. Near the end the two were racing their food down their throats. It was clear the two were ready to jump each other.
The two put their dishes in the sink and the two clopped over to the bedroom. The centaur's bed was more of a very large cushion with smaller cushions scattered around. The dresser was lifted up on some planks of wood so Trish could see herself in the mirror, and a few combs and brushes were on top. There was also a brush mounted directly to the wall. Unlike Trish, the room had not just been cleaned, and there were rainbow colored hairs all over.
Erin surreptitiously used the app again and received another sentence.
"The centaur feels a deep seated need in her loins."
Although Erin had come here to fuck Trish, maybe the other way around would be fun too, so she changed "loins" to "horsecock."
Instead of the winking mare pussy she had been staring at on the way here, she now got a good look at the black leathery balls hiding a black member at full staff.
Trish's facial expression shifted and she turned and asked, "I know you agreed, but are you absolutely sure it will fit?" Now that she could see Trish's side, Erin could see her own cock was much larger than the centaur's.
"Yeah don't worry, it will." Erin stated, even though she wasn't sure herself. Hopefully the app will save the day.
"The rainbow centaur is concerned about fitting in the human."
When she changed "fitting" to "pleasuring," Erin felt something shift below. Dropping her pants, she noticed what happened - her pussy was now huge! She could see it even around her own member. She wondered if Trish's average horsecock was able satisfy her new depths. Maybe she could salvage this with another sentence.
"Trish's cock is too small for her friend."
So they were officially friends? Anyway, Erin changed "too" to "correctly." She figured this would change the average size of horsecocks and sure enough, her 'far above average' horsecock was now even more monstrous, reaching well above her head now and almost as thick as her waist. Trish's cock and balls expanded too. Her member was now slightly bigger than Erin's old size, with balls as big as cantelopes.
With the current problems sorted, Trish's demeanor changed again. "Alright, we've wasted enough time, now ditch the phone and get on me."
Not willing to leave the phone out, Erin hid the phone behind her dick as she crawled underneath Trish.
"I'm ready!" Erin called up and immediately Trish bucked her hips. This didn't work quite right as her horsecock collided with Erin's thigh. Another attempt and she was speared. Erin gawped at how much member she was taking. The app had some crazy powers she could tell as the centaur's dick explored with her ribcage. How was she still breathing? That didn't matter, the pleasure was insurmountable.
"You ok down there? You're so tight!" Trish exclaimed. Erin gave a satisfied moan in response.
Trish shifted back and Erin leaned forward to get ready for another thrust.
Erin decided she could try and spice this up some more. She targeted herself and rolled a sentence.
"The dickgirl is taking all of the centaur's horsecock."