My Mistress invited a number of her friends over to the house. She also invited one of my co workers that she had become friends with. He is gay, and unknown to me she had shared stories with him about how she dominated me. She led me into the living room and made me stand in the middle of the floor. The women were all seated around me, he was standing next to me fully clothed and I was blushing deeply as I stood in front of everyone with my cock cage on, a pair of lacy panties over that and my nipple clamps tightly clipped on. Laughing my girl fried told me I was going to entertain her and her friends and that I was going to suck off my co-working. Laughing wickedly she said, “Come on slut, you have sucked my strap on often enough this should be easy for you.” To make it more humiliating she made me take off all his clothes myself. The women were hooting and laughing as I slowly removed his clothes and knelt before him. His cock was twice the size of my tiny cock, and I hesitated. He reached out, grabbed my head and pulled it into his crotch. I could feel his cock hardening against my face as he held me there. He finally let me go and I pulled back to see his hard cock right in front of my face. “Suck it bitch” my girlfriend admonished, and I opened my mouth and let it slide between my lips. My own cock ached from trying to get hard in my cage, my co worker reached down to take the chain between my nipple clamps and give it a sharp tug and I gasped as the women laughed. With that reminder I sucked clumsily but diligently. He seemed to like it and soon dropped the chain and grabbed both sides of my head. Holding my head tightly he began to fuck my face. I just tried hard not to gag and let his cock slide over my tongue and press against the back of my throat. Finally he came, filling my mouth to overflowing and sending cum dripping down my chin. The women applauded and laughed. As his cum filled my mouth I imagined what it would be like seeing him at work every day. Those thoughts were interrupted by hearing Mistress thanking him for helping and telling him that if he liked it he could take my mouth anytime he wanted, at work or anywhere else!