 If you liked
Maria†Holic
|
 ...then you might like
Prunus Girl
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Both of these have gender-bending as a main plot point and the other main character getting distressed over this; however, while Maria Holic has more of a sadistic relationship, Prunus Girl is a little teasing for fun.
Both of these also have a homosexual undertone, Prunus Girl doesn't particularly announce it (save for one character) but both do seem to satirize these homosexual pairing, but Maria Holic does it to a greater extent.