Math Lesson (fm:one-on-one, 4064 words)

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"Go and get your math book," I replied. "Let me take a look at what you are studying."

We were in the kitchen. She went to her room and returned with the book. I glanced at it. I don't know what I was expecting, but it was very basic algebra, the sort usually taught in middle school. I was surprised she was having difficulties with it, normally she seemed smart enough. But some people just seem to have a mental block about a lot of math. Remember when Mattel got into trouble for having a talking Barbie say "math class is hard". Yes, that sort of stereotype doesn't exactly help girls p

"Where are you up to?" I asked.

She showed me which was the current chapter. In particular, she showed me the exercises at the end of the chapter where she was struggling.

I sat down on the sofa and she sat beside me so that we could both look at the book together. I sat normally, but she sat on the sofa with her legs crossed. I don't mean how I sometimes cross my legs, she was in that sort of lotus yoga position that Chinese people seem to find comfortable having sat like that since childhood.

Since we were looking at the same book, I moved closer to her. Closer than necessary, to be honest, but I was letting myself be driven by my vagina more than my brain. Given how she was sitting, one of her legs was extended over me. I should have mentioned that she was in fairly short shorts, so that leg was a wonderful expanse of bare flesh. With her legs spread wide, it was hard to concentrate on math rather than imagining what the crotch of those shorts was hiding.

I reached over and held one side of the book while she held the other. My hand naturally fell onto her thigh. I started to explain how to do the problems that she was having trouble with. I started to move my hand so I was stroking her thigh as we talked. She didn't seem to find it uncomfortable in any way, did nothing to push me away. So I got more adventurous and went higher up her thigh towards where the leg of her shorts led up inside to whatever was inside. Presumably her panties. And inside those panties, my target: her pussy.

We sat there for a bit playing a game. I pretended I hadn't noticed that I was stroking her leg. She pretended that she hadn't noticed my hand was already up into the leg of her shorts, inches from her panties.

Neither of us could pretend we hadn't noticed when my fingertips reached the hem of her panties. The Rubicon. We sat still for a moment, both of us wondering what would happen next. I decided to go for it and tried to push my fingers into her panties, but the hem of her panties didn't cooperate and my fingers slid onto her mound over the fabric of her panties. I felt the fleshiness of her pussy, the hint of her cleft. I couldn't be certain, but she felt like she must be shaved since I couldn't feel any hair.

She gasped, and let go of the book that fell to the floor. I could feel her whole body shaking, partially through my fingers, but mostly because the sides of our bodies were pressed together. I decided to go for it. She was so aroused that I guessed she would do anything I asked.

I pulled my hand away and could sense her disappointment.

"Take your shorts and panties off," I said firmly.

She looked at me, clearly wondering if I was serious. I held her gaze. I saw the exact moment she submitted to me. I felt a flutter in my pussy. I love it when a straight girl surrenders to me.

She put her legs down, lifted up her ass, and a moment later her shorts and panties were around her knees, then her ankles, then kicked away.

She sat there on the sofa, naked from the waist down, with her legs pressed firmly together. I could see the hint of the top of her slit. She was indeed shaved, which surprised me, for a shy Hong Kong near-virgin.

I put my hand on her thigh and she knew immediately what I wanted. She let her legs fall apart and I got to see her pussy in all its glory. She did have a pretty one, with big fleshy lips and a deep cleft. Hidden in that cleft, I knew, would be her cute inner lips. Based on her skin color, they would be brown, not pink like mine. I would soon find out.

"You have a lovely one," I said reassuringly as my hand slid from her thigh until I was gently rubbing her bare pussy lips. She was soft and fleshy. I pulled one lip slightly to the side, opening up the entrance into her body. She had cute little light brown inner lips, completely symmetrical. I was probably imagining it, but I thought I could see her clit, engorged.

I pushed a finger into her. She gasped, whether from surprise or arousal I couldn't tell. Probably both. I finger-fucked her a couple of times and she came on the spot. She didn't say anything, didn't moan or scream out, but I could feel her cunt rhythmically squeezing my finger. As everything calmed down, she smiled as women often do just after their orgasm. I'm always amazed how little it takes for a girl to cum if you get her excited enough first.

I pulled my finger out of her and let it slip between her cheeks. I don't think she realized what I was doing until my finger found the rough pucker of her asshole. Since it was already slippery with her juices, my finger slipped in easily, even though it was very tight. She yelped like a surprised dog. I was sure nobody had touched her there before. For sure she'd never had anal sex. Not that that was a surprise, since she was a shy Hong Kong semi-virgin.

She sat there, shaking, so excited that I knew she would let me do anything to her. I would keep licking her beautiful pussy as a treat for later. I reluctantly pulled my finger out of her tight asshole.

"You have a beautiful ass," I said. I pulled her across me so that she was lying on her front across my legs. I got to see her shapely ass without the covering of her clothes for the first time. I put one hand on her and stroked one of her asscheeks. She let out a little moan.

"Have you ever been spanked?" I asked.

She didn't say anything, but she shivered, so I knew the answer was no.

"A beautiful ass like this needs regular attention. And spanking is the best attention."

I lifted my hand up and brought it down hard. Not so hard as to be cruel, but hard enough to sting. She gasped, partially in surprise and partially in pain. When I lifted my hand up for the next strike, her ass had a pink handprint. I brought my hand down on her other cheek, with another gasp, and leaving another handprint.

"It hurts so much," she gasped as my hand came down again. I knew she was close to being in tears. But the surprising thing about a spanking is that nothing turns on a girl as much. I think it is because girls don't distinguish between pain and arousal, so anything intense is arousing. I paused for a moment and let a finger slip between her thighs, between the fleshy lips of her pussy. I could tell she was already dripping wet, without needing to let my finger enter her.

I rubbed her pussy a couple of times, being rewarded with little moans of pleasure, then I moved back, taking a little detour to rub her asshole, eliciting another moan of pleasure. Then I raised my hand and brought it down. No moan of pleasure this time, a gasp of pain. I could tell she was starting to cry, her body wet at both ends as it were.

I decided that was enough for her first spanking. I pulled her up and kissed her. She drove her tongue into my mouth and jousted with my tongue. My hands were on her ass, my mouth on hers. I was still fully dressed.

She was fully dressed from the waist up, but I decided it was time to go up. I slid my hands under her top, under her bra, and pushed everything up releasing her breasts. She had surprisingly dark brown nipples, hard of course. I gently pinched one nipple as we continued to kiss. I knew she had never been so excited in her life, and maybe never would be again. The surprise and suddenness of everything was its own stimulant and couldn't be repeated again. She would know what was going to happen next time.

"I want to try to do it," she said cryptically.

I had no idea what she meant until she got up, undid the button on my jeans, and pulled them down to my ankles, along with my panties. Of course, I put up no resistance. Instead, I spread my legs. She paused, and sat back taking a look at my pussy, the first she had ever seen other than her own.

"Oh my gosh, what's that," she gasped when she saw the jewel between my cheeks.

Then she leant forward and pressed her tongue against it. She had no real idea what she was doing but somehow inexperience is its own thrill, like how a young wine can be as nice to drink as an aged one. I knew she would never find my clit, it is surprisingly hard to find a clit when it is not your own, so I put one hand on her head, moved my hips, and guided her tongue into my entrance. I moaned with pleasure, more to encourage her than anything. I reached down and with one finger I rubbed my clit as she worked my hole with her tongue. I knew just how to touch my body, of course, and it only took a moment for me to climax. I made a lot of noise to reward her efforts, and to make sure that would not be the last time she licked me. Next time I would take the time to teach her how to do it well.

I pulled the plug out of my ass. "Lie across my legs again."

"You're going to spank me again?"

"No, I'm going to plug you." I held the plug out. "Lick it."

She didn't hesitate even though it had just come out of my ass. I put the point of the plug on her asshole and worked it into her ass.

"Don't wear panties and keep the plug in for the rest of the day."

"Really? OK."

She sat back, and looked down, as if she was surprised to find she was not wearing panties and her bra was up under her armpits. She seemed a bit embarrassed and pulled her bra and top down, giving at least a little modesty.

She stood up, said nothing, and went to her room. Only her panties and her math book on the floor gave a hint of what had taken place. I stood up and kicked away my jeans and panties. I picked up her shorts and panties and the book and followed her to her room. Whether deliberately or not, she had left the door ajar. I could see her lying on her bed, still naked from the waist down, like me. She was masturbating, her legs spread, one hand furiously rubbing her pussy.

I pushed the door open and watched her. Watching another girl masturbating is both exciting and interesting, since every girl seems to do it differently. I don't know if she realized I was there, since her eyes were closed. It seemed as if she was in her own world, processing everything that had happened to her earlier. Suddenly her body stiffened and she sighed. Her back arched and I knew she was having an orgasm. Her fingers stopped moving.

I walked into the room and lay down beside her on her bed. I put my arms around her. She didn't seem surprised to suddenly find me there. We kissed again, but gently this time, not like the frenzied kiss we'd had earlier.

"Were you okay with everything?" I asked quietly.

"I couldn't think," she said. "I've never had an experience like that. So unexpected, so intense. One minute we were doing math, next minute I'm showing you my pussy, and then suddenly you're spanking me and plugging me."

"You checked out my pussy too."

"Yeah. You're different from me. You only shave the lips for a start, so you have a patch of hair." She paused. "But you taste the same." She put her hands over her face in mock embarrassment.

"Have you been with a girl before?"

"Never. Just a couple of boys. I'm not very experienced."

"You're not my first girl."

"I kind of assumed that. But you have sex with guys too." She paused. "I don't know if I should admit this but sometimes I can hear you fucking."

"Yes, I like boys too."

"Which do you prefer? Guys or lesbians."

I paused, wondering how much to reveal. "Straight girls are the best. You were perfect."

I pushed her knees up to her chest and lowered my mouth to her pretty pussy,

"Oh wow, that's so good."

"The boys before didn't lick you."

"No, they just stuck it in."

"I love licking and being licked. It's so intimate."

"Yeah. It's more intimate than a boy just sticking it in, for sure."

I started to slide my tongue up and down her slit, pushing into her opening before sliding up onto her clit. She closed her eyes and let out little moans.

"Don't stop" she gasped. I had no intention of stopping, but I know this is girl code for don't change the rhythm and I'll cum. I didn't change the rhythm, of course.

Suddenly, her body went stiff and she let out a long groan. It was her third orgasm of the day. I could feel her pussy throbbing against my tongue. I kept licking, a bit more gently, until she descended from heaven.

"Oh my god," she gasped. "I've never cum more than once in a day before."

"Then you need to buy a vibrator."

"I'm too embarrassed to do that."

"I'll give you one of mine."

I lay on top of her, between her legs, with my pussy mound pressed onto hers. I wrapped my arms around her. Soon she was asleep.

I got up and went to my room. I stepped into the harness for my strap-on cock, inserted the cock, and tightened the buckle. I grabbed a small vibrator from my nightstand, and a small bottle of lube.

She woke up just as I returned to her room. She saw the cock.

"Oh wow, you're going to fuck me." She laughed. "This math lesson is not how I expected."

I held out the vibrator. "This is yours now."

"How does it work?"

"You turn the base to turn it on or to make it more intense. Are you ready to be fucked?"

"I guess. I've only done it twice before so it still feels like I don't know what I'm doing."

"Pussies are for licking. Assholes are for fucking."

It took a moment for the meaning of what I said to sink in.

"You're going to fuck me up the ass?" she asked.

"All my girls have to do anal."

"Everything you have done to me so far has been wonderful. So I guess I just have to trust you. What do I do?"

"Lie on your side on the bed. That is the easiest the first time."

I pulled the buttplug out of her, squirted lube on my fingers, and pushed two fingers into her. Having had the plug in for hours, they went in easily.

"That feels so weird. I didn't even know it was a sex-hole until today when you fingered me there earlier. Before you plugged me."

"This may hurt when it goes in. But once it is in it will feel wonderful. You may have a big anal orgasm. Biggest of your life."

I squirted lube onto the cock, pressed it against her asshole, and slowly but firmly pushed it in.

"Ow," she grunted.

"Try and push it out. Paradoxically, it will go in more easily."

I love the sight of a girl's asshole, especially a straight girl's asshole, distending around my plastic cock. Slowly my cock entered her as she gasped.

"Is it painful?"

"Not really painful, but it is not comfortable."

"It's in," I said as the knob of my cock vanished into her virgin asshole. I started to make little thrusts.

"That feels good now," she said.

I took that as an invitation to fuck her harder. I gradually let my thrusts get longer and harder until the whole cock was inside her. Suddenly, out of normal, she had a huge orgasm. She screamed. That often happens with anal. I couldn't feel her orgasm this time, after all my cock is plastic. But I could tell from her screams.

"Oh my fucking god, you were right. I've never had one like that."

"Roll onto your front," I said.

We managed to change position without the cock coming out of her body. I could fuck her even harder now, so I did. She was making animal noises each time the cock entered her. The problem with a plastic cock is that it does not ejaculate so it is totally arbitrary when to stop. Eventually, I pulled out of her and lay beside her. I picked up the plug and put it back in her asshole.

"What would you like me to do with you? Whatever you ask for, I will do it."

"Like what?"

"It could be simple stuff like holding you, kissing you, and stroking your body/"

"That sounds wonderful. Neither of the two boys ever did that."

"Or it could be kinky stuff. I tie you to your bed and drip candle wax onto you."

"That sounds strange. But I'm up to try anything. I trust you."

"I could get a guy over for a threesome. Or get a girl to come over for a threesome."

"I'm not sure I'm ready for that. How about we start simply? You spank me again and then lick my pussy and then fuck me up the ass again. You said pussies are for licking and assholes are for fucking. Then you do the holding me and kissing me thing."

"You're sleeping in my bed tonight," I said.

"I've never slept with someone before."

"You didn't stay the night with either of the two boys."

"No. Once they'd fucked me they left. They were not lengthy encounters."

"Okay. Tonight, I will hold you and kiss you, and lick your pussy. Then in the morning, I'll spank you. Harder this time. You will cry. Then we do anal again. And then I'll make you breakfast as a reward for becoming one of my girls."

"Wow. Am I your girlfriend?"

"No. Just one of my girls. But since you live with me, you are the most special."

"Wow. Math lesson to anal sex in less than a day."

.

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muffdiver53 writes Wed 3 Dec 2025 01:28:

you need to carry this on with a threesome with a guy, so Lotus gets a DP

....................