Fetish lesbian japanese schoolgirl
Nina Einstein from Code Geass fits this trope pretty well. The splash page for chapter 5 showed several lesbian couples meeting at their lockers, which lead Cerise to pretend to pair up with Callista, in order to gain popularity. Blue Drop contains older lesbians as well.
In Maken-ki!, Uruchi and Takaki are canonically lesbian, with implications that Yuuka may be, as well: Uruchi is so in love with Haruko, that she openly fan gasms over her and became enraged with jealousy when Gouken ripped Haruko's clothes, during their battle. Sian may be bisexual, or Sophie-sexual as they are, thus far, too focused on each other to even acknowledge other people exist.