'I'm sorry, I didn't mean to blurt it out quite like that.' You paused briefly, as if to disassociate what you were about to say from what you'd already said. 'I'd been thinking that maybe this weekend I could talk to you both about sex. I know when I was young I felt as though I was fumbling around without a clue as to what I was supposed to be doing and with hardly any idea of what would make me feel good and what would give my partners pleasure. I've no doubt it's the same for the two of you.'
Emma looked thoughtful. 'There was only sex education at school, which didn't really explain more than the basics. Mum never told me very much at all except that boys would try to have sex with me but I had to save myself until I was married. She hinted that the first time would hurt a lot if it wasn't with a loving husband, and that was about it...'
She started to blush furiously.
'...except that one day she caught me touching myself, you know, down there, and she went through the roof. Only the worst sort of women who couldn't control themselves did that, she said. It was filthy and it was disgusting. She didn't quite say that I'd go to hell if I did it, but she might as well have done.'
'That doesn't surprise me, I'm afraid', you replied. 'It's actually perfectly natural - and how can you possibly tell a partner what gives you pleasure if you've no idea yourself? I think it might be a good idea if I explain to both you and Nathan about your bodies and how they work. We've all been naked together so this would only be a small step on from that. Have you even ever looked at yourself closely - your sex, I mean?'
Emma shook her head emphatically. 'We don't have any full-length mirrors at home. Mum and Dad say they're a sign of vanity and that's sinful. I'm only allowed a small mirror on the wall for brushing my hair. I did stand on a chair once to try to see myself but it didn't work very well and I was terrified of Mum walking in and catching me.'
'So last weekend was the first time you've ever seen other people naked? Wow, that must have been quite a weekend for you! I suppose I could start the first lesson right now but it would be much better if you and Nathan were here together.'
Emma broke out into a fit of giggles. 'You have no idea how awkward he will be', she said. 'I had enough trouble getting him to come out to the pool naked last Saturday and he only agreed because I told him he'd be the odd one out if he didn't - and then we found you and Peter wearing your costumes. I suppose you didn't want to embarrass us.'
*****
Saturday morning arrived very quickly. Fortunately it was another warm, sunny day, perfect for sunbathing by the pool, which was just as well - getting naked to sunbathe was one thing but stripping off indoors would be a far less natural thing to do. Having put sun lotion on Emma's back, you told Nathan you would do his too. He accepted, if a little reluctantly, but he seemed to enjoy your hands rubbing the lotion into his back. It was a different matter, though, when you moved down to his buttocks. He tensed as your hands lingered there. Some of the lotion ran down between his cheeks and you saw his buttocks clench when you ran a finger along the crack to catch it.
He kept his legs tightly together as your hands moved on down. You used a hand on each leg to apply the lotion and, as your hands moved to the insides of his thighs, he had no alternative but to part them. His scrotum was fully visible and you allowed your fingers to brush against it ever so lightly, as if by accident. His cock was out of sight and the way he adjusted his position suggested that it was becoming erect. That suited you perfectly; he should have no doubt now as to how easily he could become aroused by a woman other than Emma.
Your suspicions were confirmed when you announced that it was your turn now and that they were both to apply the sun lotion on you. Nathan was reluctant to raise himself up and turn towards you.
'Nathan, you're in the presence of your very beautiful girlfriend and you've just had another woman running her hands over your naked body. I'd worry about you if you didn't have an erection and it wouldn't be very complimentary to either of us. So, if you don't mind, just turn over.'
You lay down on your front between them, your face turned towards Nathan. 'Each of you rub the lotion into the side of me nearest you.'
Emma squeezed some of the lotion onto Nathan's hands and some onto hers. Nathan took his cue from her. As her hands descended to the cheeks of your behind, his did too. It soon became obvious that Nathan was manipulating the buttock beneath his hand and co-ordinating his movements with Emma so that the rosebud of your anus was exposed to his view.
You closed your eyes and relaxed as much as you could. By parting your legs, you made sure you were fully exposed to him and, with such a close view, Nathan had to be able to see the considerable difference between your vulva and Emma's. Whereas her outer labia were tightly closed and hid her inner lips within her slit, your protruding clit and inner labia would be clearly visible to him, and you hoped he'd find the variety entrancing. As his hands moved down to your inner thighs, you felt his fingers brush faintly against your sex and he must have felt your growing wetness there. In case he missed it, you let out a quiet murmur of appreciation.
Once the two of them had finished putting the sun lotion on your legs, you moved to the outside of Emma, so that she was now between you and Nathan. Each of you took the lotion in turn and began to spread it on your fronts. Nathan watched avidly as the pair of you worked your hands across your bodies. Both of you were fully aware of his interest and, almost as if there was an unspoken agreement between you, you put on a show for him, paying special attention to your breasts, nipples and between your legs. Emma used her fingers to spread her outer labia and reveal their inner secrets. You ran your fingers up and down your outer labia in a way that made your protruding clit and inner lips even more prominent. Both of you were very visibly wet.
Nathan's eyes were almost out on stalks and his cock was, by now, absolutely rigid. He had yet to spread the sun lotion on his front but, before he could do so, you took the bottle from him and moved round to take a position at his feet. You put some lotion on your hands and then passed the bottle to Emma, who did the same. You let her work on his chest while you reached down to his legs, moving swiftly up to his thighs. You caught Emma's eye and she nodded almost imperceptibly. You put more lotion on your hands and then, with one hand, you took hold of his cock while the other gently cupped his balls, massaging the lotion in. Nathan let out a loud groan.
You leaned over and murmured in his ear. 'Fuck her, fuck her right now, Nathan. Let me watch you fuck her.'
As Nathan rolled over on top of Emma, she spread her legs as wide as she could get them. You reached between them and took hold of his cock, lining it up with the entrance to her cunt. He thrust and it slid the whole way into her. She groaned, quietly at first but rising in pitch and volume as his rigid member reached the depths of her belly. What followed was nothing more than pure animal fucking. As he pistoned in and out of her, she matched each stroke of his with a thrust of her hips back at him. She set up a long continuous howl that made you glad that your house was surrounded by farm fields. With one hand you reached between their two bodies, simultaneously feeling his cock - thickly coated now with her juices - and teasing her clit. Your other hand was between your own legs, your fingers alternately plunging into your cunt and furiously rubbing your clit.
As her orgasm approached, Emma's body started to shake and she let out a series of loud yells as she came. Almost simultaneously, Nathan thrust deeply into her and grunted loudly as he unloaded his sperm into her. Neither of them noticed as your own orgasm erupted, driven by the sight and sounds of the fucking taking place in front of you and the efforts of your fingers.
Drained and exhausted, Nathan collapsed on top of Emma, the two of them gasping for breath, the blood pounding in their ears. You lay beside them, gently caressing Nathan's back and behind with your hand. After a couple of minutes it must have dawned on him that his whole weight was on top of Emma and he pushed himself up on his forearms.
'That was... absolutely... amazing', he eventually managed to utter. Emma, still too exhausted to speak, could only nod her head.
You reached over and, with one hand on the side of his face, turned Nathan's face towards yours so that you could kiss him tenderly on the lips. 'You were very, very good', you whispered to him, before you leaned down and kissed Emma too.
You all lay there, Nathan still on top of Emma, you beside them, for a while. Then Nathan slipped out of her and you moved away, leaving room for him to lie down between you and Emma. You propped yourself up on one elbow and reached out towards his waist.
'May I... touch him?' you asked of Emma.
'You didn't ask just now', she giggled, 'but I'm glad you didn't.'
It was starting to occur to Emma that there might be a way of convincing Nathan that he really didn't want to settle down to monogamous married life just yet. While you gently fondled his flaccid cock, Emma propped herself up, mirroring your position. 'Just think, if I hadn't come to stay here and you hadn't allowed us our freedom, we'd both still be innocent virgins. I'm so glad we're not.'
You smiled at Emma and then down at Nathan, who simply said 'Me too.'
'What do you think of his cock?' Emma wanted to know.
'It's a beauty, isn't it?' you replied, almost as if the rest of Nathan wasn't there. You felt it start to stir between your fingers.
'Oh yes', Emma replied, 'and it's even lovelier when it's erect and much, much lovelier when it's deep inside me.' She paused, the words on the tip of her tongue. 'Perhaps you should try it out.'
Nathan sat bolt upright, stunned. He stared at Emma, unable to believe what he'd just heard her say.
'Wouldn't you like to have Carole?' she asked him. 'It would be a lovely way to say thank you for everything she's done for us.'
'But wouldn't you feel jealous?' Nathan questioned. 'How can you be happy about me having sex with another woman?'
'Well, as long as it's just sex and you promise not to fall in love with Carole, I'm ok with it. You gave me so much pleasure just now, and I want to share it with Carole. I have a feeling she'll give you a lot of pleasure too. Please, Nathan - don't be like our parents. Besides, I'd love to watch it happening.'
You didn't wait for Nathan to answer. If you could get his penis erect, there could only be one answer. You leant over him and took his cock in your mouth. You wondered if this was his first experience of oral sex and the look of surprise on his face tended to confirm your suspicion. His cock continued to stir as you worked your mouth up and down. When you stretched his foreskin down and ran your tongue over the head and round the frenulum, he moaned and looked up towards the sky, as if trying to disown his reaction to what was going on down below.
Emma leaned over Nathan and whispered to him. 'This is my gift to you and my gift to Carole. Don't look away from what she's doing to you - it's beautiful. Enjoy it! I love you.' With that she kissed him.
You started to run you tongue along the length of the underside of his cock and were rewarded by it stiffening nicely.
'It's so beautiful', you said. 'I want to feel it inside me. I want you; please take me.'
You turned over on your back, spread your legs obscenely wide and reached out to grasp his cock. It was rigid in your hand and his reluctance faded rapidly. He raised himself up and moved between your outstretched legs, his cock fully at attention, ready to penetrate you.
Emma interrupted. 'Nathan, I really want to see you going in and out of Carole, so can you prop yourself up rather than lying on top of her?'
'We can do better than that', you answered. 'Let's try it like this.' You turned over and raised yourself onto your knees. 'Kneel behind me, Nathan, and let Emma guide you into me. Emma, put the head of his cock just inside me.'
Nathan moved into position and Emma knelt beside him. She must have taken hold of him because the next thing you felt was the head of his cock being rubbed over the entrance of your cunt and then sliding in an inch or two.
'Oh Nathan, you're inside her. It's so amazing - you're stretching her so much around you. Oh Nathan, please fuck her - I want to watch you fucking her.'
Without more ado, Nathan took hold of your hips and thrust himself all the way into you. Fortunately, you were incredibly wet and he slid into you with ease but it crossed your mind that he would need to learn about finesse in his love-making. For now, though, you had the choice of saying something or putting up with the raw fucking he was about to give you. You turned and looked at him over your shoulder.
'Nathan, slow down. Taking me from behind you're going to go deeper into me and it'll hurt if you use your cock like a battering ram. Besides, most of the sensitive bits - the bits that make me feel really good - are in the first two or three inches.'
You suddenly pulled forward so that he popped out of you, surprising the both of them. 'Maybe we'd be better off trying a different position. Lie down on your back', you instructed him. When he was in position, you turned towards his feet and straddled him, lying back on him with your legs spread far apart, your arms behind you taking some of your weight.
'Put him into me', you told Emma.
She was wide-eyed. Kneeling at Nathan's feet, she could see absolutely everything - his cock, his balls, your opening and your clit. She took hold of his cock and rubbed it up and down your sex, before tentatively using her fingers to part your little lips to expose your entrance. Then she positioned the head of his cock so that it was poised to enter you. You shifted yourself down slightly and he slipped inside.
'Oh my gosh! I can see everything', she gasped, 'and it looks so big in there. Does it feel big?'
'Yes, it does - I feel beautifully stretched. And Nathan can't move very much, so I'm in control, but he can reach round and touch me. And you don't have to, but you can easily touch me too if you want. Or you can even use your tongue on the underside of his cock and up to my clit, but if you do that you'll probably make both of us cum very quickly.'
You could tell that she was considering that possibility but for now she reached for her smartphone from the adjacent table and began to video the scene that was unfolding in front of her. She watched intently as you slid up and down, impaling yourself on Nathan's cock. Her gaze shifted from your sex to your face and back again as she listened to your moans of ecstasy. You were starting to get very worked up, especially after everything that had come before.
Since it didn't appear that Emma was going to touch you, Nathan reached round and began rubbing your clit. 'Not too rough', you pleaded with him, 'mmm, just like that, that's wonderful.'
Suddenly, Emma's eyes were fixated. 'His cock — it's soaking wet — and it's like it's covered in cream. And I can hear it. That wet noise. Is that coming from you?'
You nodded your head vigorously. 'Yes —', you gasped. 'He's — making me — cum.' You let out a series of groans as a powerful orgasm began to overwhelm you. 'Fuck me, Nathan, fuck me, cum inside me, right up inside.' Your back arched involuntarily and you forced yourself down on his cock, right down to the balls, as you let out a long wail of delight and fulfilment.
Afterwards, Emma showed you on the video how she saw Nathan's balls contract as he started to cum and she imagined his sperm being forced up through his cock and out into your body. That moment - with his accompanying groans - was, she said, the only moment when she felt a slight pang of jealousy.
As soon as Nathan began to subside, you rolled off him, allowing Emma to grab hold of him, flinging her arms around him and hugging him close to her. You gave yourself a few minutes to recover and then, discreetly, you got up and went inside the house, leaving the two young lovers to themselves.
After a quick shower to freshen up, you prepared some lunch, guessing that, after the morning's activities, you would all have worked up an appetite. As you carried a tray out to the poolside, you couldn't help but hear the sounds of Emma and Nathan deep in the throes of sexual bliss once again and were greeted by the sight of Emma mounted on top of Nathan, riding his cock. You had to give the boy his due - he had excellent powers of recovery.
By the time lunch was finished, the sun had clouded over and rain threatened. You all went inside, with the intention of spending the afternoon giving the two youngsters a chance to explore their bodies - and yours - and for you to answer their questions. Nathan clearly enjoyed the contrast of two women side by side and being able to compare the two of you - the differences between your breasts and nipples, your labia, clits, G-spots, the works. You taught him how to use his fingers, lips and tongue on your most sensitive parts and, in return, you taught Emma how to give him a first-rate blow-job. By the time the day came to an end, you'd all cum more than once and Nathan was convinced beyond doubt that he really did not want to restrict himself to one woman.
As the afternoon drew on and the time for Nathan's departure approached, you left them to it and disappeared into your study to send an email to Marianne. The task you'd been given at the Manor was to spend a whole night with a young man and allow him to do anything he liked with you, and then to write an account of it. Much as the idea of spending a whole night with Nathan appealed to you - and you were sure that he'd have no objections to the idea - there was no way it was going to happen.
To start with, regardless of the fact that he was 18, Nathan's parents would object to him spending a night away and, of that wasn't enough, Emma was unlikely to be happy for him to spend a whole night with you while she lay in bed on her own, listening to the sounds of you fucking Nathan echoing through the house. That left you with a stark choice. You could start again and find another young couple or, as long as you could persuade Emma to come to the Manor with you, you could hope that the Manor would accept that you had completed the essential terms of your task. You decided on the latter.
*****
You talked to Marianne and explained the situation; she agreed that Emma could visit the Manor as a guest, able to see what went on but not to take part. Participation was only allowed by those who had passed through the initiation ceremony. Visiting as a guest was a rarely-granted privilege but Emma would otherwise be in a queue behind other new members waiting for their initiation, and you and Marianne decided that it was best to strike while the iron was hot. And so, with this agreed, you explained to Emma how you and Peter were both members of the Manor and gave her an idea of what it involved. She was fascinated and, needless to say, had lots of questions but you cut her short.
'Look, why don't you come with me to the Manor next weekend? You wouldn't be able to take part but it would give you a chance to find out what it's all about and it would answer most of your questions. And you wouldn't have to do anything you'd rather not.'
There were a few moments of uncertainty before Emma accepted the invitation.