Maija
of course it went very badly for your sister, it was kind of clear that she wouldn't be able to hide it for long. but the parents are clearly to blame, because if your sister manages to do this, the bands were set too low. Put the bands a little higher and the problem is solved.
Ines crotch chain has not any effect due it will not pull legs together when you sit. I am only asking.
that's true, but with parents who catch their daughter cheating on the belt/thighbands, not everything has to be rational. Besides, the block piece could also look different from yours