Twin Sisters

Twin Sisters is a fictional story of a man who thought he was going to experience his fantasy of being with two attractive and athletic twin sisters. Instead, he endures a humiliating and painful nightmare as he is captured, tormented, and bullied by the sisters in what would be a bondage and discipline BDSM female domination dream for some including bondage, electric shock to the groin, and other sexual tortures. To his distress, the experience does not end in one day and his emotional pain and humiliation matches the physical pain he endures.

Excerpt:

This is when the realization hit me. She was going to use electric shock on me.
My eyes almost popped out of my head in horror. I begged and whined into the gag and one of the twins started laughing at my terror, the other one joined in laughing at the hilarious situation.