Anon comes home to his roommate, Lyra, only to find her struggling with her heat really badly. However, the ponies in Equestria are as big as horses and Anon isn't able to satisfy her. However, his cum has magical properties that shrink her. Will her smaller size give them a chance to salvage their afternoon? And what will happen if she shrinks a second time?

AU where Lyra isn't dating Bon-Bon/isn't a lesbian in this fic! Also an AU where the ponies in Equestria are the same size as horses!
Commission from MicroAR!
Cover art by ColdBloodedTwi
Contains lots of Macro/Micro themes including shrinking, doggy style, missionary, using a small pony as a fleshlight, kissing, inflation, mares in heat, lots of messy orgasms, bathtub sex, pussy plugs, and pleasurable organ-rearranging sex made possible with magic spells. While Lyra shrinks in size, she is still physically and mentally an adult throughout the entire story!