I gave up with some opportunities in this game... like the "Mentor" one, the last thing I taught Lisa was to kiss and I think I still had to learn a little more, but I practice with the aunt and nothing happens, maybe because I went with Olivia's route, so... I never bought the handcuffs because they aren't in the store.
Also, I don't undestand what happened... one day I was punishing my sisters after dinner and the other day something happened and Mom punishes them now, I don't even have the opportunity to punish them in front of her.