The Disastrous Life of Saiki K X Reader

Shun Kaidou part 1

You and Shun have been dating for about half a year and, have done nothing but hold hands, go on dates from time to time and, sometimes kiss. You wanted to do more, you wanted to kiss and touch him in ways that he never imagine. You had come up with a plan to get what you wanted.
"Shun, let's go to my house, and study for the upcoming test in math." You said as squish his arm in you breasts, causing him to turn into a tomato and, start babbling like the cute idiot he was. Your family won't be home because everyone was busy till late, so it would be just the two of you.
"I'll get some snack, just be a minute or so."
"Ok, just be careful of Dark Reunion, they lerk in every corner."
"But I'm not scared because I have you to save me." You giggled as you see him blush. You know it's not real but you think it's cute when he trys to be all cool, you love him and all his quirkiness. While you're getting snacks you change into a pair of sexy red lacy bra and panty under your clothes. As the two of you were studying there was a flash of lightning and crash of thunder causing Shun to scream and hide in your neck. The universe seemed to be on you side today.
"Shun, baby, it's ok. Come here~"
You two were now cuddling. Now was you chance to make your move. You gently push him down trapping him with your arms. With half lidded eyes you say "Shun~ baby~ want to fool around with me?"
To make sure he got what you wanted, you took his left hand placing it on your breast blushing. Shun was a frozen tomato. You then felt something hard poking you. Your lips curl up in a wicked and lustful grin
"Oh~ looks like your little friend there's excited."
You start to palm his hardening member this causes him to come back to reality and squeak out "Y-y-yn! A-ah wh-wh-at's gotten into aah~ into you?"
"Oh, nothing... yet" you said giving him the sexiest look he'd ever seen. What's is going on he thought. He wasn't complaining, he really liked  what his girlfriend was doing to him. He was still nervous because he didn't know how to do this type of thing. You sensed his nervousness. You smile at him gently, kissing him on his forehead.
"Baby, just follow my lead, ok?"
Shun nodded softly blushing nervously. You guided his hands to your hips, then wrapped your arms around his neck guiding him into a gentle yet passionate kiss. The kiss grew more intense with each passing second. Shun licked your bottom lip asking for permission, which you happily gave. After tongue fencing you both pulled away from lack of oxygen.
"U-um Yn? C-can I touch y-your b-bo b-bo-boob again?" Shun asked with big hopeful eyes, God he's so cute you thought. You nodded your head blushing lightly. He shakily grabbed both your breast, he squished them softly.
"W-wow they're so soft."
"Shun I-I wanna have sex."