They love him and with the way he looks at them,they know he loves them too. Theyre content and that's all that really matters in their relationship. Once they find the words for their love theyll joyously tell the whole world about it. But for now their love is for them to enjoy.

Because all three of them love eachother but don't know the words for they're relationship. They bought a house together, they have a bed that fits the three of them. Ochako and izuke feel so safe in Katsuki's strong arms, though the two know they are strong on their own.

Maybe even falls in love with her and her brother's mutual friend, iida, who helps her in her quest of getting her two hard-headed/oblivious loved ones together.

His hair is so spiky it pops right off him. 😭🤣
He gets so embarrassed his hair is literally glowing.

Kacchan would shake his head and sigh. But his eyes would betray him by looking so lovingly/lustful for Izuku. The horny bunnies they are. XD
Truly, Katsuki can't resist his husband.