3 comments/ 34900 views/ 9 favorites The Biology Teacher Ch. 01 By: glosterdave Matt was 18 and falling behind with his studies and at risk of not getting onto his University course, so his parents enlisted a tutor for 1 to 1 additional lessons after hours. Being 6 foot 4 and athletically build he excelled at sport but needed to get better grades in the classroom. Miss Jones was late 20s and appreciated the extra income to supplement her junior teaching salary. She was also petite at 5 foot 3 and a curvy figure with tumbling brown locks of hair reaching her shoulder blades. Matt has his tutoring on a Wednesday night which was also the night his parents went to dance class so they would leave him and Sarah Jones alone at home with a casserole in the oven for him to eat after classes. They were usually back just after 10pm. "OK, we're going to try and cover plant and human biology this term" said Miss Jones. Matt nodded and tried not to stare at her cleavage underneath her white blouse. As a young man his hormones were raging and being stuck in a small room with a grown woman was most distracting. And she had to wear that perfume...well any perfume would have been arousing for him. After a few weeks the tension wasn't so bad. It began to feel less like the teachers at college and more like an adult friend that he could talk to and discuss what they were studying. After the first half of the lesson dealt with the intricacies of plant photosynthesis, they moved on to human biology. "We really need to make sure you know about the male and female reproductive hormone cycles" Miss Jones said. "That always comes up on exams so we need to have that covered" Matt nodded as Sarah talked through various diagrams of the female hormones and reproductive organs. She asked what happened if levels of one hormone didn't drop off in the monthly cycle but Matt looked confused. "OK, this hormone is in the female contraceptive pill, so taking it keeps the hormone level constant and the egg isn't released so the woman can't get pregnant. Understand?" Matt had it now. He nodded. "But wouldn't those levels have other effects?" "Well yes." Sarah replied. "You see I am on the pill. Mainly to control the heavy periods I used to get as a teenager but my breasts have grown a cup size as a result." She indicated her bulging bosom and Matt couldn't help but look. Sarah was feeling quite relaxed and wanted him to really understand but at the same time was feely rather naughty and daring. At least she could argue she was teaching him the subject... "Have you studied the female breasts before?" "No." Matt said. "OK, well let's do it properly then." Sarah unbuttoned her blouse and unclipped her bra. "You don't mind do you? Only I think it's best to learn thing properly." She said as she free her bare breasts. Matt gulped but watched intently as Miss Jones described every part and detail of her C cup breasts. She explained how they had grown at puberty, how they felt during her monthly cycle and how that had changed being on the pill. Matt felt his penis begin to throb as she described how they used to feel around the time she ovulated and his eyes weren't deceiving him when he saw her nipples harden and swell. She encouraged him to feel the soft tissue of her breasts and so for the first time Matt touched a woman's breasts. He relished their warmth and softness and his cock was definitely starting to grow. Sarah felt an exhibitionistic twinge showing off her impressive boobs to this fresh young man as she described the role of the nipples in breastfeeding. "Of course, some women say they can experience an orgasm from nipple stimulation alone." She said. "Is that true, Miss?" Matt gasped. "Err, yes, I can say that it is true, Matt." Sarah admitted (feeling a little shocked at how much she had revealed of her own experiences). "OK, ready to move on?" Sarah asked. "Sure, what's next, Miss?" Matt replied. Thinking quickly, Sarah retorted. "Let's look at male secondary sexual characteristics. Can you take your shirt off, please?" Matt did as he was told. Sarah described the changes a male goes through at puberty pointing out Matt's stubble beard, enlarged voice box that gave him a deeper voice and when she touched his chest hair she felt a tingle run through her body. Was she getting wet down below? "Now obviously there are other changes. The penis grows, the testicles swell and lower and the man grows hair. Sperm production starts in the testicles but the actual fluid of semen is made in the prostate gland inside your body. Did you know that?" "No, I didn't Miss. Where is that gland?" "Well, I can show you if you like?" Sarah replied. Matt didn't need a second invitation and he peeled off his trousers and shorts. Confronted with a naked student Sarah reverted to teacher mode. "Your prostate gland is about the size of a walnut and is located a couple of inches inside you, just there." She pointed with her finger as Matt peered down to see. "Some men say that their prostate can be stimulated by a finger up the rectum. Apart from that it's pretty well hidden." Matt pulled a face. "Are you producing any quantity of semen, Matt?" Miss Jones enquired. "Any nocturnal emissions?" "I had one but I stop that from happening again." Matt explained. 'How often, Matt?' "Every day, Miss." He replied. "That's quite normal for a young man your age." She smiled. "Shall we take a tour now we are down here?" Sarah pointed out all the features of his cock and balls, naming each part and explaining its role. As she did so she gently touched him and with each touch, the young man's cock hardened a little more getting more and more vertical with each pulsation. "Well we might as well go through the various physiological stages of male sexual arousal." She smiled at him. Sarah explained that the swelling of the shaft was only the first stage. Taking his cock in her hand she gently slid the soft skin back and forth over the hard shaft beneath a few times. "Soon we'll see the next stage, the head or glans penis getting very big." Miss Jones explained how the shape was designed to sweep out other males' semen from a woman in more animal times of our evolution. "These days it just feels good for the woman sliding into her and filling up the space at the end of her vagina by the cervix. It kind of makes her feel full up." "Next stage; see how your testicles are pulled tight up towards your body." Matt continued to gaze at Miss Jones bare breasts as she touched his cock. He couldn't believe this was happening but it felt fantastic. "Next stage should be the precum." Sarah explained. "These are juices designed to lubricate the tube down the middle of your penis to aid the flow of the semen when you ejaculate. It's a sign that orgasm is on its way." Sarah milked his cock and a drop of dewy liquid formed at the eye of his cock. "There we go! It's a bit sticky." She touched the drop with her fingertip and extended it away drawing out a long thread of Matt's pre cum before rubbing it onto the head of his cock. "Shall we carry on and finish up?" Sarah asked. Matt could hardly believe what he was hearing. Maybe he had misunderstood so he just nodded and let Miss Jones continue. And continue she did as she put both hands around his shaft and wanked him slowly. "Does that feel good?" She asked. "Uh huh!" Matt replied in between breaths. "I'll keep going and I'll tell you what's happening." Sarah continued to stroke his shaft with both hands pausing only to take one hand off to point out another drop of precum or the swelling head of his cock but she never stopped the insistent rhythmical stroking. "Soon you'll feel a pressure inside your loins and you need to allow that to happen and to boil over as it were. Eventually you will get to a point that even if I stop you will still orgasm regardless. Are you there yet?" "Almost, I think." Matt gasped. "At this point the sperm are already mixed with the fluid from your prostate and ready for ejaculation in the seminal vesicles. It's not actually stored in your testicles." Miss Jones stroked the young man's erection faster until beads of sweat formed on her forehead. "When you ejaculate, rhythmical pulses of the urethra will shoot the semen out with force. During sex it goes deep into the woman but for now we'll just see how it comes out." Gazing down at Miss Jones cleavage, Matt could see where it would go. "I'm gonna cum Miss!" Sarah carried on wanking him. "Keep going!" The first pulse shot out of the tip of Matt's erection and landed on her chest. "Wow, I could feel that really pulse in my hand!" She said as a second, then a third pulse of semen shot out. Matt gasped and groaned as he emptied his spunk over his tutor. When he was done she looked up with a smile and said; "We covered a lot today, well done. Let's get cleaned up." Sarah hunted for tissues and wiped herself down not caring that she left traces of semen on her boobs rubbed in to the skin. When the pair of them had dressed they tidied up their papers and books. "For next week, I want you to read up on the female reproductive system so you can talk me through it." Matt nodded, not daring to think what next week might bring. The Biology Teacher Ch. 02 Matt was 18 and falling behind with his studies and at risk of not getting onto his University course, so his parents enlisted a tutor for 1 to 1 additional lessons after hours. Miss Jones was late 20s and appreciated the extra income to supplement her junior teaching salary. Next week Matt had read up on his homework as he had to. He had wanked himself almost every night thinking about labia, clitoris' and vaginal juices. Sarah came in as usual and they settled themselves into the room and turned to the chapter in the text book. "Now Matt, are you able to talk me through the female reproductive system as we planned?" Matt nodded and mumbled "I guess so, yes." "Good." said Sarah. She explained that to make things easier, she had worn a skirt and no underwear. Matt gulped and his cock hardened in his pants. Sarah sat on a piano stool and lifted up her skirt right in front of where Matt was sitting. "Can you start with the external features?" She asked. "Labia majora?" Matt nervously said. Sarah reached down and gently parted her outer lips. "You can see I have shaved away my pubic hair to make things easier to see. And in here we have?" "The labia minora." Matt replied. Sarah licked her fingers and touched her wet lips. "What else?" "The clitoris?" Matt asked. Sarah explained the clitoris' role in sexual arousal and as is to demonstrate she idly diddled it with her middle finger as she described how it brought on lubrication of the vagina. "You might be able to see my lubrication, Matt. Can you?" "Not yet, miss." he replied. "Then why don't you have a feel. It feels quite wet in there to me. Go on, touch it." Matt nervously reached forward with his hand and touched a fingertip onto his tutor's pink vagina. It felt warm and slick. With her encouragement he moved the finger around and at her entrance he felt the juices she had spoken of. "Put your finger inside my vaginal sphincter, please Matt." Sarah instructed and Matt did as he was told. Sarah explained how this part of the female anatomy guarded the entrance and could squeeze tightly. She demonstrated around his finger. "Feel that?" Matt Nodded and his cock throbbed in his pants. Sarah then guided him through sliding a finger all the way into her vagina. She made him curl a finger up to feel her g-spot and explained the delights it could bring to a woman approaching orgasm. By now, Matt was firmly sat between his tutor's warm thighs as she guided him through a tour of her sexual parts in Matt's parents' front room. "Can you put another finger inside me please, Matt?" Sarah asked. Matt did as he was told and felt Sarah's tight wetness engulf his middle finger too. "Feels tighter doesn't it?" Sarah asked. Matt agreed. "Now wiggle both fingers on the g-spot, please, Matt." Sarah asked. Matt duly obliged curling his fingers in a come hither motion inside her wet pussy. He could feel her g-spot felt different and it was obviously exciting her. "Can you see how the signs of arousal are now evident?" Sarah panted. It was true. Not only was she oozing pussy juice but her nipples had become erect and a pink flush had appeared on her chest and breasts. "I want you to watch how I stimulate my clitoris while you carry on with my g-spot and we will see if we can achieve an orgasm." Sarah licked her fingers and smiled at her young charge who was intently and rhythmically caressing her g-spot deep inside her vagina. She started to twiddle her clitoris and she closed her eyes as she masturbated. "Tell me what you can see, Matt." instructed Sarah. "Well, your labia are much more swollen now and there is way more lubrication in your vagina. I can feel it all over my fingers. Your breathing is much faster now and a bit shallower than before." Matt responded. "Reach up to the end of the vagina, Matt and tell me what you feel." Sarah told him. "Is that your cervix, Miss?" Matt asked as his fingers gently circled the neck of her womb. "Yes, be gentle but that feels wonderful." Sarah replied in between gasping breaths. "Keep going!" With his fingers deep in her pussy, Matt's broad hands stretched Sarah's vaginal opening wide while his fingers stirred her womb. The young tutor threw her head back and a low guttural moan started in her belly and gradually turned into a loud cry as her orgasm erupted through her. Matt could feel the pulsing contractions of her sex around his hand and the cervix between his fingers pulsing as she came. Sarah implored him to keep his fingers in her as she came down from her orgasm. Eventually Matt was told to withdraw his fingers and taste the sticky goo that coated them. "It tastes sweet but musky." He told her. Sarah smiled and they agreed he had learned a lot this week. Sarah wiped herself with a tissue and then put on a pair of fresh panties she had kept spare in her handbag. Standing up on wobbly legs, she noticed the lump in Matt's trousers. "Well! That won't do now will it?" she exclaimed. "Seeing as you've tasted me, shall I taste you now?" Sarah asked, smiling. Matt simply nodded, almost dumbfounded at this. Sarah reached forward and unbuckled the young man's jeans and unzipped him. His cock was standing to attention in his boxer shorts. She helped him down with his clothes and his cock stood firm and proud, throbbing with each pulse of blood in his veins. Sarah bent down and took his cock head into her warm mouth. Her lips encircled the shaft and her tongue swirled around his helmet ridge as he groaned at the first blow job in his life. This would have to be quick so she worked on him, sucking and caressing his cock with her tongue, humming slightly to vibrate him, while her hands held his shaft. Soon Sarah felt the tell tale tightening in his cock. "Oh, Miss, I'm gonna cum." Matt gasped. Sarah mumbled something incomprehensible about keeping going while she pumped his shaft into her mouth. Matt's orgasm hit him like a train and Sarah swallowed down several gulps of his sperm as it shot over her tongue and down her throat. Coming up for air after his orgasm had subsided, Sarah told him that his ejaculate was thick and tasted a little salty. Sarah set Matt some more reading for next week and she said goodbye. As she walked down the drive Matt's parents pulled up and she greeted them. Little did Matt's mother know that her boy had fingered his tutor to a tumultuous climax in their front room and what would Matt's father say if he knew that the attractive woman he passed on the drive had his son's still warm semen trickling down her throat into her stomach. The Biology Teacher Ch. 03 Matt was 18 and falling behind with his studies and at risk of not getting onto his University course, so his parents enlisted a tutor for 1 to 1 additional lessons after hours. Miss Jones was late 20s and appreciated the extra income to supplement her junior teaching salary. As Sarah Jones walked up the front path to Matt's house she knew that tonight would be risky and dangerous for her. But she was so excited. Already her pussy lips were swollen and slick in anticipation of what might happen. She was glad she had an extra pair of panties in her briefcase. Matt answered the door and as usual, his parents were on the way out to dance class for the evening. Matt politely made her a cup of coffee and they retired to the study. "OK, Matt. We have looked at human sexual organs, the workings of the male and the female parts." Sarah opened the text book to some cross section diagrams. "We looked at male arousal, where sperm production takes place and how it mixes with fluids from the prostate to be released in the ejaculate during climax." Sarah pointed to the male diagram but Matt's mind drifted back to being wanked off by his late 20's study tutor a couple of weeks back. "Tonight, we will examine how that sperm and the female's egg are brought together during intercourse." Sarah went on to explain that male sperm production was continuous but the egg was only released once every month at ovulation. "As I told you, I take the contraceptive pill which suppresses ovulation but what would happen is the egg gets released from here." Sarah pointed to her belly. "And it moves down the fallopian tube to meet the sperm released inside the woman's body during intercourse." Her finger moved down as she spoke. Sarah suggested they went upstairs to examine that process. Matt swallowed hard but nodded. "Shall we go to the guest bedroom?" Sarah asked. "Clothes off please!" ordered Sarah, who was already peeling her skirt down her thighs. Within a moment she stood naked before her teenage student who was also tearing his clothes off. Matt gaped at the delicious shapely curves of the naked woman in front of him who was now climbing onto the double bed normally reserved for visiting aunts and uncles. "I can see you are a bit ahead of me in the arousal department!" Sarah noted, looking at Matt's throbbing erection. "Would you care to lick me?" She enquired. Matt nodded and climbed onto the bed between Sarah's bent knees. He could smell her and then he tasted her as his mouth closed over her pussy mound. He explored her sex with his tongue as Sarah named each part of her as he tongued it. "Outer lips, inner lips, clitoral hood, clitoris, mmm that's good. Vaginal sphincter, perinaeum, oh my goodness, the anus! Where is the g-spot, Matt?" Matt slipped a finger inside her and carried on licking her. Sarah began to breathe hard and within a minute her hips bucked off the bed as she orgasmed. Sarah collapsed back and took a moment to get her breath back. "OK, so let's think about intercourse. I want you to kneel between my legs and put your penis into my vagina. Normally you would wear a condom to prevent me getting pregnant but as I am on the pill it's quite OK for you to ejaculate inside me." "Because I have orgasmed, my vagina has expanded to make more space for your erection and you will feel lots of my lubrication which will make it easier for you to slide into me. Understand?" Matt nodded. "Ok, so let's pretend you want to get me pregnant." Sarah said and she guided his shaft toward her wet pussy. Matt felt the heat of Sarah's pussy as the tip of his cock parted her wet lips. His helmet widened her pussy entrance as he slid in. Sarah panted a little as he entered her but she carefully guided him with one hand on his bottom until he was all the way inside her. Resting his weight down onto her, Matt felt his balls resting on Sarah's bottom and the end of his cock nestle in the very end of her pussy. He was no longer a virgin. Sarah felt pinned down to the bed by Matt. His muscular young body dominated her smaller frame and his hips had pushed her thighs wider apart. His stiff cock speared her pussy and felt longer than she had imagined it would. Sarah could feel the head of his cock nudge the neck of her womb. She was going nowhere until Matt decided to let her get up off the bed. "Are you OK?" Sarah panted. "Uh huh, yes Miss, it feels amazing. You feel amazing." Matt uttered in between breaths. "Whenever you are ready, take it nice and slow" Sarah told her young lover. Matt began to move gently back and forth inside her. Sarah could feel his helmet sliding inside her. "Did you feel that? Just there. You're touching my cervix each time." Sarah gasped. Soon Matt could feel the excitement rising in him. Each successive thrust became a little firmer, a little deeper into Sarah. She was breathing heavily too and could feel an orgasm beginning. Sarah whispered into his ear as he thrust; "Soon you're going to ejaculate your semen into me and your sperm will end up in my womb" Matt tipped over the edge and thrust deep into her squirting several shots of warm spunk into Sarah. She could feel her cervix bathed in the young man's semen as Matt came for the first time inside a woman. She held on to him as he came down from the peak of climax. Sarah held him inside her and encouraged him to stay still until he was rested enough to try again. That evening Matt came two more times inside Sarah as his education continued.