Slick
"Bill, you're casting a shadow and blocking the sun," said Charlie, as he looked up through squinting eyes at his older brother. "Why don't you make yourself useful and put some of this on my back?"
Bill dropped down beside Charlie, who was clad only in shorts, stretched out on the roof of Grimmauld Place in the afternoon sun and took the bottle of tanning oil squirting it liberally on Charlie's back.
"Fuck, that's cold. You could've warmed it up a bit first," whined his little brother.
"Stop whining," Bill said, straddling his brother's hips and kneading strong back muscles beneath his fingers, as he worked in the tanning oil. He stripped off his own shirt and leaned forward kissing a trail up Charlie's back, across the tattoo of the Welsh Green that graced his upper shoulder, who only moments earlier had been shooting flames from his nostrils in protest of the oil, but settled contently down to sleep when Bill's lips first touched it. About as tough as its owner, Bill thought, chuckling before leaning forward to whisper in Charlie's ear, "I missed you. Romania's too far away, you know?"
Charlie groaned in response as Bill jerked down his shorts and poured more tanning oil into his own hand, kneading the firm muscles of Charlie's arse cheeks before sliding the oil between them and inserting two fingers.
"Fuck, yes," sighed Charlie as Bill worked his fingers in and out. "Want you now, Bill."
"Eager, are we?" teased Bill, crooking one finger in a way that he knew drove Charlie mad with desire.
Between gasps and moans, Charlie reached for the bottle of oil and emptied some into his own hand, reaching around to pump Bill's cock with his fist, coating Bill's shaft in the slippery oil. After only a couple of strokes, Bill grasped Charlie's hips, parted his cheeks and drove completely into him with one forceful thrust, continuing to pump faster and harder into Charlie's tight opening, until he collapsed spent against Charlie's back.
Charlie's cock was straining for release, as Bill turned him over. He took his younger brother's cock into his mouth, sucking him deeply into his throat, and circling the sensitive tip with the underside of his tongue. He sucked and licked up and down Charlie's shaft, reveling in the moans and gasps his teasing was eliciting from the handsome younger man's full lips.
"Gonna come, Bill," Charlie gasped.
Bill pumped Charlie's wide cock with his hand, capturing his full lips with his own and parting his lips to allow Charlie's demanding tongue entry. Charlie came with a low growl as his entire body trembled in Bill's arms.
When their breathing slowed, Bill rolled to his stomach on the smooth surface of the roof, before tossing Charlie the tanning oil with a wink, "I think it's your turn to do my back, Little Brother."
"With pleasure," said Charlie, flashing bright blue eyes and a lopsided grin.
Fin