This Valentine's Day and spend time with the most powerful black-hearted witch around.Dona Diabla is Mater Tenebrarum. A powerful witch who rule sissies and cuckolds with "verbal humiliation, erotic magic, and darkness".Mater Tenebrarum's presence completely disrupts the flow of male logic as demonstrated by her intense feminine energy. Step out of the shadows. I won't suck you too hard! Mater Tenebrarum .... Mater Tenebrarum ... Mater Tenebrarum is the name that will be on your lips.