Okay, computer crashed while writing this, so skipping the shout outs…here's a little something, possible slight AU. Enjoy.
Tsuyu and Izuku sat in the common room, focusing on their homework when the door opened and the green-haired heroes looked up in confusion to see Eri stepping into the room. Looking at each other, the two looked back at the white-haired girl and Tsuyu croaked, "Ribbit, Eri? What are you doing here? Shouldn't you be in bed?" Eri ignored her as she continued to walk over to them.
Climbing onto the couch, she sat between the duo and smiled, "Eri?" Eri hummed and looked up at the One for All hero, "What um…what doing here? Shouldn't you be sleeping like Asui said?"
"I know, but I want to spend time with mama and papa," Tsuyu and Izuku stared at her with wide as Eri held onto their hands and smiled, "Okay, I feel better now,"
"E-Eri?" Eri looked up at Izuku with wide eyes, "What um…what do you mean by mama and papa?"
"Because you're my papa and Tsuyu is my mama," Tsuyu and Izuku looked away as their faces began to heat up, "And we're a happy family,"
"Ribbit, Eri, we-" Eri looked up, small tears forming behind her eyes, "E-Eri?"
"Mama," Tsuyu's eyes widened before she hugged the little girl next to her and Eri hugged her back.
Eri slept between the two as Izuku sighed and rubbed the back of his head, "So…why did she call us mama and papa? And where is Mr. Aizawa? I thought he was supposed to be watching Eri,"
"It'll be fine," Tsuyu croaked and Izuku looked at his froggy classmate in confusion, "Mr. Aizawa is still caring for Eri, and we can play pretend with her whenever she gets lonely, ribbit,"
Tsuyu reached down and rubbed Eri's head as she slept and Izuku sighed and slightly smiled, "Damn…you're um…you're great with kids," Tsuyu hummed and nodded.
Sorry…enjoy.