One evening in late June, I was watching "Friends" re-runs when there was a knock on my door. I opened it.

It was Cristina.

She looked magnificent in a black leather dress that emphasized her statuesque figure, poised on high black boots with high heels. She entered unasked, closed the door behind her, and pulled a whip out of her briefcase. "Kneel, slut," she commanded.

My knees went weak and I soon found myself looking up at her from the floor. My heart was pounding.

Cristina pressed the whip to my mouth. After a moment's hesitation, I kissed it tentatively. She pushed it more firmly, and I kissed it again, more passionately and submissively. I hoped she would not use it on me. I knew I would not be able to stop her.

"You look good as a blonde, Jenny," Cristina said with a smile. "Take off your glasses." I put them to the side. "Spread your knees." I opened them further, reassuming the position I had known so well for so many months. It felt strange to be kneeling while fully clothed. I was wearing jeans, socks, and T-shirt. I wondered how long it would be before I was naked.

"I see you have forgotten your lessons, Jenny," Cristina said, shaking out the whip. "You should be kissing my feet by now."

Immediately I bent down and began. "I'm sorry, mistress," I said. "Forgive me, mistress." The taste of the smooth leather brought back memories I had hoped to erase.

I felt Cristina reach down and lock a steel collar about my neck. I shuddered with fear. Then she attached a chain leash to the collar and used it to pull me back up to a kneeling position.

"Stand up," she said. I obeyed. "Strip." She dropped the end of the leash so that I would be able to take off my shirt. I reached down and pulled off my socks. I wondered how far this would go. I expected she would make me serve her, but it was what came after worried me. Would she enslave me as I had once longed for her to do? Would I go willingly again into slavery? I pulled off the shirt, letting the leash fall back down between my breasts. I unbuttoned and unzipped my jeans, pulled them down off my hips, and stepped out of them. I was wearing only a bra and cotton panties.

I looked up at Cristina. She was smiling. I lowered my eyes and reached behind my back to unclasp my bra. A moment later my breasts were bare, as they had been for most of the past summer and fall. Then I reached down and peeled the panties down my legs and stepped out of them. I was nude, collared and chained. My knees felt weak. I wanted to kneel and spread my thighs in submission, but I had not been ordered to.

Cristina walked up to me and began caressing my naked body. I did not lift my hands to stop her. I was a slave once again. My body was hers to do with as she pleased.

"You are wet, slut," Cristina said.

"Yes, mistress," I said, humiliated. She put her fingers in my mouth, forcing me to suck them. I could not hide my arousal.

Cristina coiled the leash in her hand, leaving only eighteen inches of slack. She pulled me over to the couch in my living room and sat on its edge. I knelt before her. She used the leash to pull my face between her legs. "Yes, mistress," I said. I lifted her dress and extended my tongue. I felt her hands in her hair as she clutched my head to her body. I began to serve her as only a slave girl knows how, my eyes closed in submissive ecstasy.

Many times did Cristina have me serve her that evening, in many different positions. She raped me with the handle of her whip, allowing me to come to orgasm as the pitiless implement abused me. I cried out my submission to her on my knees, nude, collared, and chained, as I had been so many times.

Hours later, Cristina was once again seated on the sofa as I knelt before her, my hands now tied behind my back, softly licking and kissing at her legs. "So, Jenny," she said, "will you be my slave?"

I continued kissing her, my mind and body still warm in the afterglow of the evening's services. I thought about the bliss of the last few hours, and the frustrations and disappointments of the previous months of freedom. I knelt back on my heels and looked up at her.

I gave her my answer.

It was the most difficult decision of my life. I still often wonder if I made the right choice.