A-Z Game Headcannons:
U = Unfair (How much they like to tease)
He loves games and loves to play with his s/o most of all. His teasing will often come in the form of a game. There will be rules. There will be goals. There will be rewards. Games vary depending on his ultimate goal. He loves for her to play too. He loves when she teases him. The build is almost better than release. He's never cruel in bed, it's all about romance and pleasure for him. Shunsui has raised teasing to an art form and he is a master of his craft.
F = Favourite Position (This goes without saying.)
Lotus. He loves how it gives him access to all of his s/o. It lets him penetrate deep into her and be able to hold her tight against him. His hands will roam everywhere. Plus, it gives him great access to her breasts. He will suck her nipples, grip her ass, and rock her gently to a mind-blowing orgasm. The moment yher inner muscles begin to flutter and squeeze him, he's a goner. He'll groan loudly against her chest and sit there for a while enjoying how she holds him against her as they both recover.
A = Aftercare (What they're like after sex)
He'll draw a bath, climb in with his s/o, and have her lay back against his chest. There will be a bottle of sake and a cup within easy reach and you'll both drink from the same cup. He'll lazily stroke her skin while they both talk about everything and nothing. The soft rumble of his voice is so soothing and reassuring, she'll sink into it. After the bath, he'll carry her back to bed to settle in for a good night's sleep. (Unless it's during the day, then it's nap time)