"Ah, young love." Sirius dreamily commented when Order Member Violet Moon gave her girlfriend a tender kiss.
"Bring back any memories?" Violet's guardian and paternal Aunt Mimi Moon cheekily asked.
Sirius smiled fondly. "Yes it does."
Harry, who had been sitting nearby, also smiled, hoping that his godfather was referring to his parents.
"Like all those times you would James as a pillow for you and Remus?" Mimi inquired with a raised brow.
"I almost forgot about that." Sirius replied as the memories came flooding back. "I remember him joking about it, he seemed to be fine with it."
"You used your best friend for a pillow while snogging your boyfriend?" Hermione asked in disbelief.
"And cuddling." Sirius added as if it was nothing. "I seem to remember him joining in on occasion."
Harry suddenly felt uncomfortable as the mental image of what his godfather described formed in his mind.
"I remember that too." Mimi added. "Remember the train ride home for the winter holidays during 7th year?"
Sirius thought for a moment, and the others in the room began to hope that the pair wouldn't go into too much detail.
"I think." Sirius replied, "The two of us, Remus, James, Lily, your brother, Peter, Dorcas and Marlene were all in a compartment, right?"
Mimi nodded. "There wasn't enough space for all of us, so some doubled as chairs."
A look of realization suddenly came over the wanted man. "I remember now! Dorcas was sitting on Marlene, Lily was sitting on James, Remus was sitting on me while I was leaning on James."
Mimi let out a joyful chuckle, "Yep. The way you four intermingled and loved each other, my brother and I were almost certain that you would form a polyamory."
"Well we did talk about it," Sirius answered, "but I don't remember us ever deciding on anything concrete. Apart from me and Lily being Sibling Spouses." Then the man turned solemn as he finished, "Sometimes I wonder what would happen if we did. Looking back, I wouldn't mind if we formed one."