your kirishimas gf/bf you pick :3 your joining his class as a suprise to make him smile

Aizawa: guys there's a new student joining us behave and make them feel welcome. I'm going to sleep.

Aizawa got Into his dirty sleeping bag and fell asleep

You walk in and then kirishima yells out smiling and happy af

Kirishima: BABE?? WHAT YOU DOING HERE??

he says as he runs up to you and lifts you up and you Chuckle

Bakugou: just another extra!

He says in a annoyed tone

Jiro: bakugou calm down.. they are probably nice..

Meanwhile Kirishima is kissing you all over your body like crazy from how excited he is that your joining his class and becoming a hero too!