These days, Katsuki was straight-up obsessed with Izuku—like, couldn’t keep his eyes or hands off her, always pulling her into corners for quick kisses or more, whispering how she drove him crazy. And Izuku? She loved every bit of it, glowing like the sun, her skin all soft and happy, that innocent smile turning a little naughtier each time he called her his. “You make me feel so… wanted,” she’d say, blushing but pressing closer.

One afternoon, they were in the nursery, cuddled up on the rocking chair, watching Kenzo sleep in his crib—his little chest rising and falling, chubby fists curled by his face. Katsuki had his arm around Izuku, fingers tracing lazy circles on her thigh under her tiny skirt. “Tell me more about mermaids, baby… mermen too. How do you… mate down there?”