He still took pride in having taught Harry 'everything he knew', and just the suggestion that Harry could go to anyone else for his first threesome was enough to have him firmly on board.
Ron didn't know how to bring up the subject of the Polyjuice, and had been stunned by Harry's flirtatious behaviour.
"There's one more thing," Harry had said, biting his lip. "This is going to sound so selfish, but it's really my only chance."
Seamus had raised an intrigued eyebrow.
"I can't believe I'm gonna say this…"
"Harry?"
"This is nothing against you, you know that. But," he put the vial of Polyjuice on the table. "What I really want is to fuck and be fucked by Ron."
"A Weasley sandwich?" Seamus crowed. "You filthy boy!"
"What d'you think?" Harry asked, blushing.
"I think I taught you well," he laughed. "But I can't believe you got Ron to agree to this."
"Oh, Ron is vain enough to want to see himself fucking me, or something like that!"
Which brought Seamus and a couple of bottles of firewhiskey to their flat one evening.
"So," Seamus asked. "Any ground rules?"
"Yeah," Ron said. "No offence, but we don't touch each other. I don't want to do anything with myself!"
"No, we're both here for Harry, I know that."
Harry blushed and swallowed his whiskey.
They undressed and sat on the bed.
"Ron," Harry said. "Keep your watch on, yeah? I want to know which one is which."
"He'll be the clumsy one," Seamus laughed.
"Look, you're suddenly gonna be a foot taller, you'll be the clumsy one," Ron said. "And it'll probably take you an hour to get the hang of having a bigger cock."
"Can you please both shut up and fuck me?" Harry begged.
"Sure," Seamus said. "Bottoms up!"
And with a saucy look at Harry's bottom, he swallowed the potion.
Harry lay between them, his eyes glazing over as his hands tangled in two identical mops of red hair that were working their way down his body, while two long fingered hands caressed him between his wantonly spread thighs.
"Fucking brilliant," he whispered.
He watched two identical mouths reach his straining cock and lick their way up it.
"You bastard," one of the Ron's muttered and they closed their eyes and their open mouths met, tongues stroking each other and running over the head of his cock.
He watched them suck on it and pass it back and forth, between their mouths. "Ohfuckyesthankyou," he babbled. "Love you so much."
"Bloody good thing you do," his Ron said, surging up to kiss him, leaving his double to suck greedily on his cock. "You're gonna fuck me now, Harry."
"Godfuckyes," Harry whispered, getting to his knees and pressing Ron back onto the pillows.
Ron spread his knees wide and pulled them up to his chest, while Harry knelt in position.
He reached for the lube, but Seamus took it from his hand. "Kiss him," he hissed.
"Fuck, yes," Harry said, hooking his arms behind Ron's knees and looming over him. His mouth closing over his lover's, he spread his legs and presented a clear view of both their arses.
"Fuck, Harry," his Ron whimpered as Seamus' lube slicked fingers probed them both. "Not fair."
"What can I say?" Harry murmured. "You know how I break the rules."
They kissed, Ron's hands tangled painfully in Harry's hair, their breath hissing out of flared nostrils as their cocks ground together and their bodies relaxed round Seamus' clever fingers.
"Fuckyesgodnow," Harry whimpered. "Please."
Seamus withdrew and Harry positioned himself at Ron's entrance. "I love you," he whispered, slipping slowly into Ron's body, feeling smooth muscle surrounding him.
When he was fully sheathed, their balls pressed together, Ron's cock trapped between their bodies, Harry felt a large hand on the small of his back, holding him down as another familiar cock spread lube between his cheeks, before pressing into him.
He threw his head back and screamed, the feeling of Ron's body surrounding him and piercing him almost too much to bear.
Two pairs of hands petted him, drawing soothing circles on his skin until he stopped shaking.
"Fuckingamazing," he hissed between clenched teeth. "Fuckingperfect."
The Rons grinned at each other, over his shoulder, and Seamus’ hands moved to his hips. "Ready to move, Harry?" he asked.
Harry whimpered.
Seamus moved back, the head of his cock stretching him, pulling him backwards, out of Ron's body. "Ohdeargodyes," he whispered, as Seamus surged back into him, driving him forward.
His Ron cried out, desperate hands reaching for his face and snatching a kiss before he was pulled out of reach again.
Harry knew he wouldn't outlast the Polyjuice; each stroke of the cock inside him doing double duty in driving him towards his climax.
"Gonna, fuckyesgonnaplease, Ron," he whimpered.
"Come for us," his Ron said, their eyes locking together as Seamus thrust harder and faster, tossing Harry back and forth between them like a rag doll, until his climax ripped through him with the force of a bolt of lightning.
They turned him onto his back, holding him as he came back down to earth.
"Fucking perfect," he murmured, still trembling. "I… there are no words. The perfect orgasm."
"Excellent," his Ron whispered, pressing kisses into his hair.
His double sat up, adjusting his still erect cock. "Um, I think I'll take a shower," he muttered.