Remus' smirk grew deeper; he loved watching Regulus when he got like this, on edge and wanting. He loved how they could mix desire and mirth, even from their first time together, which was nothing short of miraculous, he was certain.
"I seem to have made rather a habit out of putting you above others without even realising it, haven't I?" Remus smiled softly, brushed his lips briefly across Regulus' as he resumed the conversation that seemed to distract his lover from the teasing at hand -- or drove his lover to distraction, perhaps. "But, I knew the gift for Sirius was an attempt to reconnect with your brother. You weren't just asking me to help you buy him some random gift. You were asking me to help you with something you hoped would bring you closer together. How could I do anything else?"
Shaking his head ruefully, Remus let out a huff of laughter. "No, I was thinking more of how we usually discuss the things that are bothering us, -- Harry and the Weasleys aside -- how talking things out with you usually helps me." He chuckled. "I don't really think Sirius has the patience to stop talking to James for more than an hour, though."
Remus' eyes took on a wicked gleam, conversation beginning to lose out to teasing and touching and more. "So, Le Marquis de Sade, hm?"
Remus paused in his quotation to suck lightly on his lover's collarbone."When [he's] abandoned [his] moral centre and teachings..." He slid his entire body along Regulus', purposefully adding friction against Regulus' cock. "When [he's] cast aside [his] façade of propriety and [gentlemanly] demeanour..."
Hands moving slowly down Regulus' arms, along his side, Remus nipped and licked a trail down Regulus' chest. "When I have so corrupted this fragile thing and brought out a writhing, mewling, bucking, wanton...for my enjoyment and pleasure..." He bit lightly at one nipple, finger nail scratching briefly over the other. "Enticing from within this feral [lion]...growling and scratching and biting..." Remus took his time mapping with his tongue the outline of his own teeth imprinted upon Regulus' hip, marking him as Remus'.
"Taking everything I dish out to [him]..." His lips hovered over the head of Regulus' cock, brushing against it as he finished his modified recitation. "At that moment [he] is never more beautiful to me."
Taking Regulus into his mouth, Remus finally set about making good on his promise.