Operation Walburga's Arbitrary No Kissing Ever Rule
“Excuse me, you what?”
“I want you to take Regulus out on a date,” Sirius repeats casually as if he hasn’t just said the most absurd thing ever, watching the Snitch that had escaped James’ hand the second Sirius had made the ridiculous request the first time.
James stares at his best friend in disbelief, because what?
“Look, if you go on a date with Regulus, I can go out on my Moony date. My parents will realise that their stupid idea of cursing me with only getting to date once Regulus does didn’t work out because look at that, Regulus also dates! They reverse the magic, Regulus can happily go back to refusing to date anyone, I can go back happily dating Remus, and you can happily go back doing whatever you had planned to do this summer. Quidditch, I assume.”
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or: A 10 Things I Hate About You AU where James fake dates Regulus so Sirius can date Remus again