Mark laid silently on him and his girlfriend's large double bed with his wrists cuffed above him to the bed frame. A black blindfold covered his eyes and the only other thing that he was wearing was a cage between his legs which ached furiously. He couldn't see his girlfriend but he could hear her as she walked around the room. Without warning she jumped on top of him and he felt her hot breath on his lips. She kissed him passionately making him moan gently and then pulled away suddenly. As he reached up for more he felt her hand wrap around his throat and push him back down onto the bed. "Stay down" she commanded sweetly. "Yes Lucy." That earned him a gentle slap followed by a quick kiss. "Look at you darling...you're so horny for me that you forget everything don't you? It's kinda cute actually." She wrapped her hands around his throat and gently squeezed as she leaned forward to whisper in his ear. "When we are in a session you must refer to me as Mistress or Mistress Lucy. Do you understand?"
He nodded the best he could and stuttered out "Yes Mistress, I'm sorry Mistress." She laughed sweetly at that and gently caressed his face as she kissed him again. "Good boy. Now I don't want any more slip ups like that tonight baby. I'm supposed to be rewarding you for being so good but I can tease and punish you for hours if you'd prefer?" He blushed a bit at that and said "I'll do better, Mistress...please Mistress." She undid the cuffs, threw them aside and then pinned his wrists down. "If I take off your blindfold do you promise not to cum immediately like last time?" she asked knowing how much it embarrassed him. "Yes Mistress." She ripped it off and leant backwards so that he could see all of her in their dimly lit room.
Mark looked her up and down and felt his cock throb in its cage desperately. Fuck was all he could think as he looked as his beautiful girlfriend. When she had tied him up she had been wearing casual work clothes but now Lucy sat on top of him wearing silky red lingerie that ran up and down her gorgeous body. Her long blonde hair fell from her face perfectly and gently brushed against her breasts as she moved. She had done some gentle makeup across her face and her green eyes watched him carefully, her beautiful face breaking into a smile as she stroked the side of his face lovingly. All he wanted to do was reach up to her and kiss her but he knew better than to do that without her permission.
Lucy looked down at her boyfriend and watched him carefully as he admired her body. She had always liked how much he did that. His brown hair had been ruffled from being tied up for so long and his sweet blue eyes took her all in. Fuck he's so cute she thought to herself. "Please Mistress..." he whimpered as she leant down to him, their faces inches apart. "Do you want to know what your reward is sweetheart?" she asked gently. He nodded desperately. "Seeing as you've been such a good boy for me recently I've decided that you've earnt a release." Release. That word made Mark feel incredibly horny and it took all of his self control not to lean up and kiss her mesmerizing lips.
Since they had started exploring several months earlier his 'releases' had been few and normally a bit humiliating for him. He normally just grinded and humped against her in his cage until he came as they kissed and she gently praised him. Once she had promised him that he could fuck her as a treat but as she uncaged him he had exploded all over her beautiful breasts and that was the end of that. It was driving him insane which they both liked and most nights he found himself grinding against her butt desperately. They discussed everything frequently and had a safeword in place in case it ever got too extreme but Mark had never used it. He was in heaven being dominated by his stunning girlfriend and she loved having him to play with and tease.