(You and Him have been dating for only 5 months. This takes Place After Saving Eri. Where He doesn't have a quirk right now.)
You sat on the stairs of 3A dorms as you Watched Mirio Run around with little Eri, Playing with chalk drawling on the ground with her, Blowing Bubbles, Playing Hopscotch, and even eating an apple for a little snack with her. You watched and admired him. And Tamaki walked up beside you "he really is a ray of sunshine..." Tamaki said quietly to you
"He really is...I don't know how he does it...he is truly one of a kind..." You said softly as you blushed watching him
Hours later it was time for little Eri to Return to her living quarters as Mirio walked over to you and Tamaki "well Hello My Love and My best bud" he cheered
"Hello.. beautiful boy of mine" you said smiling softly as you stood up as Tamaki followed. After a bit of talking it was curfew time. Mirio sneaked you into his dorm as you both found yourselves on his bed as his head was snuggled into your tummy whispers such sweet compliments too you
"Your beautiful...your so smart...your So so strong... Your so Prefect in every way. I love your little belly you have.. it's so cute and squishy. I love you so much" he muttered into you belly as he gives you a Cheeky smile.