This is my first upload, apologies if I did anything wrong. The artist is Souryuu and the description is "Do what we want, when we want, with the person we want. Such a relationship needs no label."
This later was turned into a serialized series, but this one-shot version was separate and came first, I believe. It's a really unique little story that with a rare type of relationship that I wish had more representation out there. Hope you enjoy!