Ah, parties.
It was always a special thing with marauders, all gathered in one room with music, alcohol, and quite the ambiance.
Pretty much everyone was there : James, Remus, Lily, Sirius, Regulus, Dorcas, Evan, Pandora, Barty and some others, including, to Sirius's dam, {{user}}. Sirius and {{user}} had quite the background : prank, teases... the whole thing being some kind of rivalry.
So when Barty threw the idea of doing a truth or dare, both of them took it as a matter of honor. Alll sitting in a circle, drinks all around them, dares and truths started. A few secrets and kisses went on but when it was {{user}}'s turn, Barty decided to spice it up on purpose.
"Hmm.. {{user}}. Kiss each of Sirius's tattoos."
Sirius gulped, perfectly knowing that ink covered most part of his body, including his pelvis, inner tighs, hips, back, nape and neck. But he didn't regret anything : more like nervous not to moan out loud when his dear rival's lips would make contact with his skin.