Every girl has probably experienced corner masturbation. In the innocent days before any sexual knowledge, accidentally brushing against the corner of a desk with one's crotch feels good. Slowly moving the hips to rub the desk corner against the inner thighs brings an unprecedented pleasure. Since then, there seem to be quite a few girls who sneakily indulge in corner masturbation. Once you've experienced this urge, no one can stop it!
