Lance stood naked in the surf, hands propped on his hips and staring aghast at Shiro. "What do you mean," he said, "you don't know how to swim."
Shiro was still seated in the soft sand, far enough back from the waves lapping the beach. He shrugged, a(more) little amused at how offended Lance looked by this pronouncement. "Never learned," he said. "I can float I guess, but-"
"No, no, no, /no/," Lance stormed up the beach to him. He'd started out the day wearing swimming trunks as Shiro encouraged him to do, but given this stretch of the beach was technically private property and hard enough to get to that tourists didn't bother them there he'd left them, sodden, on the towel. "Did I bring my skin?"
"Always." Shiro nudged the coat, folded neatly and still impeccably dry, even under Lance's abandoned swim trunks. Lance flipped the coat open and over his shoulders, completely immune to how ridiculous he looked like that.
"Up," Lance said, holding his hand out to Shiro.
Shiro frowned at him, suspicious. "I don't need a swimming lesson, Lance."
"No husband of mine is going to be afraid of the water. Up."
"I'm not afraid of the water." Shiro shook his head but put his hand in Lance's and allowed the selkie to pull him to his feet. "Besides, if you have your coat what are you going to show me? You're just going to swim off and leave me alone."
"Is that what you think?" Lance said, eyebrow raised. They were already in the water up to their knees and he hadn't even slowed his stride, seemingly unaffected by the pull of the tide. "Thought you knew me better than that, Shiro."
"Hope I do," Shiro said, as a wave crashed over his head.(less)