Darenimo Naisho de.
From Hoshikuzuu Scans:
Maki, a popular and good-looking dude, but a virgin. Despite his playboy looks, he believes that sex should be done with someone you like. A pure-hearted teenage boy that you rarely see nowadays. And by some accident, his classmate Miyashita found out about him being a virgin. In exchange for his silence, Maki is threatened into going out with him. He reluctantly accepts, but later discovers that Miyashita is a huge sadist.
KABDrama
2 stories. first is more interesting but only shows very very beginning of a very very immature relationship. needed way more chaps to make this a satisfying complete story but if it is showing just the start of them being a couple…then…ok, it was just ok. Second story just boring LOL Fast read, best thing about this 🙂