Hi /e/,

I searched /e/ like 5 times and /r/ failed me multiple times so here goes.
I saw a manga/doujin either here or on /b/ (but I belive it was here) around 4-8 weeks ago.

It was about a girl who had to go to a pool wearing a bikini with a top that showed her boobs. She painted her boobs white so less people would notice.

She got exited and they guy that took here there gives her a drink, then he suggests to remove her bikini because it's tight so it could be the cause of the exitement.

Later on it didn't work and the girl is even more exited, he then says she is probably an exhibitionist and offers to give her sunglasses so she can avoid eye contact with others.

She ends up fingering herself there I though well that's unusual for /e/ but you coudn't see anything because of her hand.

Does /e/ know what I'm looking for?
Also will bump with my ecchi.