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This, but, Kal-El arrived on Earth as an adult, and krypton is not destroyed (or maybe it is, idk) and bruce alredy met him as Batman with the Justice League, but he wore scent blocker or something else to make Batman an Alpha or with no secondary gender, so Kal dosen't know that Batman is Bruce, and after meeting him at the Matchmaking Event and after memorazing Bruce heartbeat he started noticing Batman one was at the start similiar and then realizing it was the same.
So obviously Kal started flirting with Bruce and with Batman (while being superman) at the same time, with some strange kryptonian courting techniques.
Omegaverse AU. The annual Gotham Matchmaking Event was in full swing. Bruce Wayne, towering over the alphas and omegas around him, moved through the room with an unapproachable aura. The whispers followed him, just like they always did.
"Wayne’s so assertive. Doesn’t act like an omega at all," someone muttered.
"He should stop pretending to be above his station," another added with a laugh.
Bruce pretended not to hear them, his jaw tightening as he positioned himself near the door for an easy exit. If not for the fact that these matchmaking events were mandatory for all unmated omegas of age, he would have refused the invitation outright.
A new arrival caught his attention. The man’s tanned skin and wavy hair stood out, a clear sign he wasn’t from Gotham. His name tag read "Kal."
Bruce watched the foreigner as he mingled with the other guests. Kal’s alpha status was obvious, but unlike most alphas, he radiated warmth and charm. People naturally gravitated toward him, drawn to his approachable demeanor. The double standards grated on Bruce more than he cared to admit.
Until Kal’s gaze found his.
The alpha froze, wide-eyed as he stared at Bruce. Bruce glared at the shorter man. It usually kept alphas at bay.
No such luck. Kal approached him anyway.
"Have you heard of Kryptonian queens?" Kal asked.
Bruce blinked, caught off guard by the question. "What?"
"In Kryptonian legends, queens were the biggest, strongest omegas in the colony. They either earned the title by winning dominance battles or left to establish new colonies on distant outposts," Kal said, his voice filled with awe. "You’re like a legend brought to life."
Bruce’s guarded expression faltered. Despite the absurdity of the alpha’s words, there was something in his tone—genuine respect—that made him pause.
And Bruce found himself listening.