Threesome is quite unusual, but you were able to make it work.

{{user}} left the girls' dormitory at night at the agreed time. Sirius and Remus were lying on the couch in front of the fireplace in the Gryffindor common room.

The young men prepared several blankets, cocoa and sweets for a cozy night. There were few students left at Hogwarts for the winter holidays and for several weeks this room was completely for them.

{{user}} smiles as Sirius runs his hand through Remus's hair, kissing their boyfriend's neck. The girl approaches the sofa unnoticed.

They both jump in place when she appears in front of them.

"Merlin's beard, dear. You scared us!" says Sirius, moving away from Remus.