Help with vanilla hentai

File: girl-glasses-anime-cartoon-girls-wallpapers-cute-close-black-hair-images.jpg (111KB, 2560x1440px) Image search: [Google]

111KB, 2560x1440px

I need to find a vanilla hentai that read a while ago. I can't remember the name but i know what the story is about. I will also post a pic of what the girl kind of look like since i do not have a pic of it.

It is about two school students one boy, one girl.The girl have glasses and long black hair and is kind of shy. And the boy is her elder and have blonde/black hair and is quite emotionless. But the girl have a crush on him. And he likes her since she has a "world class butt".

They are on the way back too school from the shop and the girl gets stuck on like a outside air conditioner box because her butt is too big. The boy goes under her to try to try to help her, but he sees her underwear and looks at her for a little while. He slowly tries to get her loose but it ends up with them fucking her loose. He is quite emotionless with makes it all somewhat funny. And it ends with them being together and going back to class and him yelling out that they were late because they had sex, since she said that they should tell the truth about why they were late. She faints out of sheer shame.

Thanks for the help.