It wasn't wholly unexpected since Silvio was down there, but that warm, wet tongue made him shudder. He hummed at the initial lick, then moaned as Silvio sucked his cock into the heat of his mouth. His fingers curled tighter in the wolf's hair and he used his legs over the other's arms to lift his hips off the bed in hope of more.

He's been exclusively with one person for so long, it was absolutely thrilling to learn how someone else behaves in bed. The thrill of learning what Silvio likes, what they can do to and for each other... Ah, it's going be such a delight! Su-jin let his eyes fall closed, his breathing already heavier just from this.