Do you bear the full sin when responding with sexual harassment to someone who sexually harassed you?

The precursors to indecency, such as playful touching, kissing, and lustful gazing, are forbidden in Islam by the consensus of Muslims. One who commits such acts must repent to Allah the Almighty. It is not permissible for someone who has been subjected to any of these acts to retaliate in kind, because it is not permissible to exact retribution for forbidden acts in the same manner.