Following on from a set of other little anthropomorphic birdy illustrations.
Taken from the commissioners description:-
In the story Darren and his older brother Tommy get changed into birdboys. During they adventure Tommy meets a pretty birdgirl who talks him into sitting on her eggs while she has a good time elsewhere. Some time after that Tommy loses his temper and he suddenly becomes younger and turns into a smaller and younger birdboy. But now that he is no longer big enough to be of use the birdgirl quickly moves onto another birdboy as she shuns poor little Tommy.

You can find the accompanying short stories in the commissioners gallery over on Deviantart.
Commissioner @Curious4ever

Commission price just $5.20 with top tier Patron discount and benefit.
https://www.patreon.com/DonPretzel