poor girl has mommy issues so bad that it's wrecking her relationship with the girl who's in love with her. of course, the only way to solve this problem is through dubiously consensual sex, being that this is smut and all.
being put off by the sister and teacher stuff is valid but it's only an outright feel-bad story if that's the thing you need it to be. it could just as easily be "twins use sex to pollyanna their way through everyone's unspoken problems and guilts" which.
problematic and fantastical, but far from "what the fuck am i reading" tag worthy