The dick is lining up.

You just grew, a lot, but that dick in the sky is still too massive, even for someone of your stature. Which thinking of you didn't feel your dick get a growth, so as best you can you feel around for it blindly since your boobs are in the way.

Nothing.

Well not nothing, just not a dick. You feel more intensely and find a pleasure button of a clit, a few inches bigger than you dick used to be and a pussy attached now, and yes you still have an asshole, you can feel it. You couldn't keep your thoughts straight, you're a woman now!? How? What was in that cum? The questions keep coming and you can't find answers right now.

In the middle of this inner crisis you have neglected to notice the woman of the sky moving to line up with your now pinpoint target of an ass. As it hangs, mere tens of feet above you that's when you realize she is lining you up then you hear a voice. Soft, yet very authoritative, it says "You must be the buyer, I'm Polly, and I hope you're ready because this is your life now." That last part she said as aggressive as her voice would allow, and was accentuated with her shoving as hard as she can towards your butt. Her cock shoves both cheeks away and hits a barrier, your asshole. You were pushed into the ground like she was trying to squash you with her dick, it was still bigger than what should be able to fit but her dick seemed pliable, almost like she wasn't hard yet, but she had to be right?

With a lot of effort, and squeezing, and more pre-cum, it slid into your asshole with pain that was quickly replaced with pleasure. Though the pain wasn't fully gone it was negligible in comparison to how good it felt. As she sat there with the head of her horse dick inside you and your mind cleared up, you feel a jerk and a surge of more cock, but not like she just thrusted. Your fear is true, she in fact is not hard and is quite a bit of a grower it seems like.