This happened when I was in my early twenties, when I was still fairly 'vanilla' sexually. I was at my favorite pub, sitting at the bar, when I struck up a conversation with an attractive woman waiting to be served. She invited me to join her and her friend at their table. The women worked together and had carpooled to the pub. We drank and danced until the woman said she had to leave; she was married and had to go home to hubby. But her friend wanted to stay longer, and since she lived just a mile from my apartment, I offered to give her a ride home.
Her friend was less attractive, heavier, and much older (I think she was forty), and I really hadn't been in interested in her. But as soon as we were alone it became apparent that she was into me. "Did you notice how I kept staring at you as you were sitting with us?" I was flattered by the attention. She looked better with each passing minute.
After another drink we were in my car. Since we passed my apartment first I casually asked if she wanted to stop in. She smiled and said, "Of course."
I forget how it progressed but we ended up in my bedroom. As I lit a single candle, she plopped herself on the bed, over the covers. We were both fully clothed -- me in a work shirt and slacks, she in a knee-length dress -- and we started making out. She was a passionate kisser, emitting soft moans while pressing her body against mine. When my hand covered her breast (over her dress) she moaned harder. But when I moved my hand to cup her behind, she suddenly pushed away. "No, no," she said quietly, shaking her head. "No, I can't. No." Despite my arousal, I wouldn't force myself upon her.
But after a minute or two she rolled back toward me and again started kissing me passionately. Lost in the moment I tentatively moved my hand over her breast; she again moaned in approval. This time when my hand went to her butt she didn't pull away. Instead she let out a quiet, "uh huh" which encouraged me. She was on the heavy side so there was a lot of butt for me to massage. As I did this, she started grinding her groin against me.
But then she pulled away again. She turned her head away and sighed. "The lust," she said. She sounded almost disgusted with herself. "It's wrong. It's so strong, but I shouldn't..." I remained silent and still. My erection was almost painful, and I could sense a wet spot in my underwear. She apologized again, but a moment later she was back in my arms kissing me, getting us both hot and bothered.
This cycle occurred a few times: kissing me, grinding against me, encouraging me, and then pulling away and complaining about her "lust". At one point she even palmed my erection through my pants, but then almost instantly pulled her hand away. "It's OK, you can touch it." I told her, but she shook her head. The last cycle ended with her asking me to lay atop her, and me dry-humping her. "I want to feel you hard cock inside me," she whispered, sounding like a porn star. And then: "Do you want to cum inside me?" I slipped my hand over her thigh, then under her dress. Just as my fingers felt her panty she pushed me off her and again complained about her lust.
I said as sat up and shook my head. "You're making me crazy. I can't take any more of this." My cock couldn't; I had to adjust my erection through my pants. I spoke softly, without anger, just frustration. "Let's just go to sleep, and I'll take you home in the morning."
She crawled over and swung her legs off the bed. "I'm sorry, I shouldn't have..."
I looked at her in the candlelight. This 40-year-old was acting like a wishy-washy teenager. I blew out the candle and remained seated next to her. Moonlight filtered through the window shades. "We can sleep and I won't touch you, I promise, but I need to-" I reached down and undid my belt -- " to take these off. I'm ... very uncomfortable."
"Because of me?"
"Because of you." I unbuttoned and unzipped my pants. They slid to my ankles and I kicked them off.
She inched over closer and rested her head on my shoulder. We sat in silence for a moment or two, both of us looking down into my lap. "Do I really make you that crazy?"
"You get me so hard. Can't you tell?"
As if to find out she reached over and placed her hand over my boxers. "God, you are."
"You get me like this and then you push me away. Do you know what you are?"
"A tease?" She glanced at me.
I watched her hand make slow motions. "But you like it, don't you - feeling my cock?"
Hearing me say the word 'cock' must have brought on another reminder of her lust, because she pulled her hand off me. More silence. Then she lifted her hand and stared at it. "When I was a girl and I touched something I wasn't supposed to, my father would slap my hand."
I expected her to drop both her hand and the subject, but she kept her hand extended. I had never experimented with light domination before, but I sensed what she wanted. "Maybe you need your hand slapped for what you did to me."
She held her hand closer to me. "You can. I deserve it." Wow, the night was turning even stranger.
I wasn't sure how forceful to be -- was this just a game or something more? I lifted my right hand and slapped her hand, harder than a playful tap, but not terribly painful. When she kept her hand held up I realized that she expected more. I slapped her hand a second time, even harder. And then a third time, now hard enough that she let out a grunt.
And then, to my surprise, she thanked me, and leaned forward to kiss me. Soon we were locked in another passionate kiss, our tongues exploring each other's mouth. Once again, I heard her moan. And once again I felt her hand on my thigh, now moving up until she grasped my hard-on through my boxers. In a throaty whisper she said, "I'm sorry for being such a tease, for being such a cock tease." I guessed saying the word made her feel dirty. "I'm so... bad.. It's OK if you need to punish me for my lust." She rested her head against my chest. In a quiet voice: "Do you want to?"
"To what? Punish you?"