https://www.wattpad.com/965362809-ar-gxg-gl-girlxgirl-1/page/2Where can read it? I can but don't wanna read it in Japanese...
This is the only English translation I could find. If you can find the Japanese one out there. You can use different apps, and get it somewhat translated. I must warn you that only volume one has a proper story. The further the story goes the flimsier the plot becomes. It's basically an erotic story. Each volume ends with a different sexual fetish. Outdoor sex, filming, breast-play and at times the consent part is a bit dubious. The latest story, volume 10, really goes overboard. Marika wears a remote-controlled bullet vibrator and she wears it during a school trip to the aquarium. Marika tries to refuse, but she accepts it due to Aya insisting.