This is my first story for Literotica. All comments appreciated.
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"Will you do me a big favour?" Sue asked. We were relaxing one evening in the week before Easter in front of the big coal fire at home. Although it was late March, the winter was hanging on grimly. Outside, it was minus four degrees. Our draughty old Victorian house in south London was cold and I'd lit the coal fire. The central heating system was ancient and the radiators threw out inadequate heat. But we had a huge open fire in our drawing room and it now blazed as we toasted ourselves in front of it, with the room lights off.
"What is it?" I replied lazily. I was half asleep as the flickering flames, heat and most of a bottle of red wine had a soporific effect. I wasn't really paying attention.
"I need to learn all of the body's major structures and mark them up on someone. Will you let me do it on you?"
"Oh, sure I suppose."
"I'll have to draw them on your skin."
"Uh?" I sat up and blinked sleepily at her. I hadn't expected that.
I've never been able to resist my twin sister since we stopped squabbling at the age of thirteen. We are our mother's only children. We were at the time I'm writing about, nineteen years old. We are boy and girl twins, (what they call "fraternal", which is pretty common, but we are not identical). She's always been the brainy one, but she is, to me anyway, both beautiful and clever. We are both blond, but she's got my father's blue eyes, whereas mine are grey. She's 5'9" to my 6'. I am well built and average looking: she is, well, a blonde bombshell. We have always been emotionally close as you'd expect of twins and had tended to hang out with the same friends. People joked about us being joined at the hip. I almost always give in to her, whatever she wants, from borrowing my jumpers to driving her around when she needs a lift. But this was a new one.
At school I had mucked around and was sporty, eventually playing flanker for our school's First XV rugby team. I scraped through my GCSEs and barely made it into the sixth form for 'A' levels, but she got straight As in everything. I managed in the end (by dint of heavy cramming) to get good enough 'A' Level results to get into a red brick University to read Law, but she again seemingly effortlessly got all A* grades and was accepted to study medicine at Oxford University,one of the top Medical Schools in England. She didn't even rub it in that much.
That was last summer, and we'd started at our different colleges in late September. I'd never been away from Sue for long before, and in truth I'd missed her terribly, (more than I missed my friends to be honest). I'd never had a girlfriend last more than a couple of months, my last one ended when I left school. Jane said that she couldn't cope with the competition. If Sue had a boyfriend at college, she had so far kept it quiet. I'd had sex before with Jane but I wasn't massively experienced. I had a suspicion that Sue had lost her cherry when she went out with my mate Dean, the rugby squad's burly prop forward, but that hadn't lasted long after we left school, either. I was quite pleased as I was on my own then and two's company, three's a crowd and I didn't fancy playing gooseberry. Sexually speaking, University was a desert. Maybe I just wasn't trying hard enough. I had quite a few drinking mates of both sexes at Uni, but that's as far as it went.
In early November that year when we were just two months into our courses, our 64-year old lawyer dad had dropped his bombshell, announcing he was leaving our mother, citing her increasingly weird behaviour. Over the last five years, our mother, who was in her late fifties, had taken up the Roman Catholicism of her childhood and at times seemed quite unhinged, spending half her life at the local church. (Had Father Dennis been a bit younger and less portly, I might have suspected something was going on). After Christmas, being on her own whilst her two kids were at college, she stayed often with her spinster sister, (who was just as dotty). They had decided to spend Easter visiting Rome (and no doubt praying for my dad The Sinner) and as far as I was concerned, good riddance to them. Our dad had --surprise, surprise -- moved straight in with his younger PA from his office and her two young kids and was spending Easter in their new love nest. Sue and I didn't blame him, to be honest. Our mum was hard work at the best of times and being married to her would have tried the patience of a saint.
Still, Sue had been devastated by the breakup of the family home, as she and her dad had always been very close and he now had a new family to consider, so she felt like the spare wheel whenever they met up. I had done my best to be a shoulder for her to cry on, and hoped her studies hadn't been too badly affected. We were now back at home for the Easter vacation, swotting for our end of first year exams.
So what did she want me to do? Sue explained.
"I've got to pass my Anatomy exam with flying colours or I can't get into the Second year. It's really hard. I've got to learn all the bones in the skeleton, all the muscles, the entire nervous system, the blood and endocrine and respiratory systems with all the major blood vessels, where they go and what tissue they supply, all the organs and their functions. But I've got to be able to find everything on the human body. It's not just learning where it is on a page in a book!" Her voice went up a note. "I've got to find it in 3D! They can ask you to mark up a real person in the exam!"
She paused for breath. In a panicky voice, "I'm really struggling with this, John. I'm going to fail!"
"You struggling? Blimey. What does everyone else do?"
"Use their boyfriends or girlfriends." Sue didn't apparently have anyone at Uni either. She shrugged. "Some of us girls get together and mark it on one another, but I've never been able to mark up everything all at one go, and that was ages ago. Pleeease?"
"What do you want me to do, exactly?"
"Well, just stand still while I mark you with different coloured felt pens." She frowned. "It's not that hard, I mean even for for someone from a third rate University." She poked her tongue out at me.
"Oh, great, thanks. Well," I said, "I'll think about it and let you know." I ducked as she threw a cushion at me.
"Pleeease!"
"Well-l, if it's a question of you failing, okay then, I suppose." I tried not to sound too enthusiastic.
"Oh, great", she beamed, "That's super. I'll be sooo grateful!" Her lovely blue eyes held mine for a long moment. We both looked away quickly.
So, the next morning found us at 9am (9am, I mean, in the holidays?) in the dining room,wearing sweaters against the chill. I was in jeans and Sue was wearing a denim skirt and woolly tights. She had a pile of anatomy books on the dining room table. The curtains were closed, for privacy. I stood and waited for instructions.
"Okay", said Sue, "you need to take your shirt off."
"Hang on, it's a bit chilly, I'll catch cold. I'll turn the gas fire on."
"Oh, you wuss. Come on, get 'em off." I lit the fire, which spluttered into life and started to take off my sweater. She stood and watched as I peeled it off over my head and quickly unbuttoned my shirt. I wasn't wearing an undershirt. I stood there in my jeans. The room really was a bit cold, and goosebumps sprang up on my arms and my nipples grew hard.
"Hmmmm, you've been to the gym?"
"Yeah, a bit, for rugby. I'm hoping to play for the Firsts."
Sue eyed my torso with what I took to be appreciation, and ran the tip of her index finger down my left arm. In truth, I'd packed on over a stone in solid muscle since early January. I think she'd already got a bit more of me than she'd expected.
"Do they use real people in Anatomy class?" I asked.
She wrinkled her nose.
"Sometimes. We learn from dissecting cadavers at first." (She'd already told me this, I found it grimly fascinating). "The live ones tend to be fat old men and women doing it for a bit of extra money. They're usually pretty unattractive. Not like, um - " She broke off suddenly and blushed, and turned away.
