Bruno then retrieved the dangling wires and plugged them into an electronic device on the cart. He then leered at me lasciviously, showing me the con...rols on the device as he cranked a knob on it as far as it would go. He then flicked a switch on and right back off. That was enough to send a blinding bolt of electricity streaming through my most sensitive parts. The pain was so intense that my knees gave out from underneath me. Were it not for the manacles I would have crumpled into a. I became stiff over the thought of me being thrashed and spanked senseless by a woman, my sister on top of that. I heard her enter as she made her way to my bed. "Come here, Tony!" My eyes looking down the entire time, I scurried over to stand in front of her waiting for further instructions. Though humiliating, I always enjoyed the pre/post spanking routine. Before the spankings, I'd get lectured as to why I was getting spanked and the need for me to be disciplined. I felt like a child being. “Me too,” replied Amy.“Okay, bring your swim suits. You can cover them with a wrap or wear them under your clothes and I’ll pick you about 9 a.m. Saturday.“If anything unforeseen happens, I may take charge. Otherwise you girls are the Masters. I’m your slave and the boys are your slaves. We must obey any order you give. You can order us to get naked. You can order any boy to fuck me, and you can order us to kiss or lick anywhere you choose.”Saturday, after picking up the girls, I wore my ‘Fuck. I stood up and as I roused out of the water my swim shorts fall just on my hips. Showing my happy trail leading to my pubic patch. Her eyes dropped instantly to my crouch. She had this look of hunger with a bit of surprise. I reached out and grabbed her tub and gently spun her around. As I leaped onto my tub my shorts fall some more now showing my ass, as I lay on my stomach on the tub. She now is turning back around to me and see's my ass. She says to me laughing "you are having a hard time.