Help me find this manga

I'm uncertain if I remember the plot clearly. It's a manga where a two delinquent students guys were both a leader of their group circle at the same school (or maybe they're both a delinquent students and part of the same circle)

Both of them fighting each other in front of their groups/friends. But they are fucking each other when they are both alone. Once after school, when both of them were walking back to their homes, it suddenly rains (I guess) and they both sheltered under the bridge near them. And the mood starting to heat up, they kiss and fuck each other (or maybe they just kiss, I don't remember).

And when the rain stopped, they went back walking to the road to go back to their homes, but they suddenly met their other two group circle members. And they asked where did they came from and why both of them were together. And they answered that they had a fight (event though they fucked each other under the bridge). But they saw the kiss mark on the uke's neck, they smirked secretly, and they knew what they did. But actually, they already know that they have a secret relationship behind their back and doing some naughty stuffs even before.

I think it's a oneshot manga. I'm not sure whether I read it on mrm or here on mangago. Thank you if anyone can help me. I've been thinking for the past weeks what's the title of this one.