I still don’t know what to think about yesterday, and I don’t know who I can talk to about it. I’m too embarrassed to talk to Ha, especially since she was friends with Mel already, and apart from that there’s no-one else who knows enough about me.

I haven’t heard from Mel. I hope she isn’t expecting me to message her first because I wouldn’t know what to say. I mean: is this the start of some kind of relationship, or was it just a bit of fun? It’s all so new and strange to me.

Oh my oh my. So much to tell.

Today was set to be my second session doing Pilates under Mel’s tuition, and given what happened last week I was so looking forward to it that I found it hard to concentrate at work during the day.

I arrived at her place soon after six o’clock and I was almost shaking as she let me in, already dressed in leggings and a tight top, and I followed her up the stairs. She said “we might as well start right away”, so I started to undress. It didn’t take long as all I had on was socks, shoes, a skirt and a blouse, and if Mel was surprised that I hadn’t brought any exercise kit to wear (again) then she didn’t say anything.

We went through the warm-up, me standing naked on a yoga mat and Mel opposite me showing me what to do, and then into some planks, and Mel was already correctly my position with her hands on my hips here, a touch of the shoulder there, a press into my stomach here, and it not only made me put extra effort into the positions but it made the time fly.

While she had me doing some abs work (roll-ups and roll-downs on my back, and then scissors with my legs) she sat crossed-legged beside me. Sometimes she put her fingers onto my stomach to check the right muscles were working, and just feeling her touch me made them work even harder.

Afterwards I was lying on my back with my legs stretched full out and my arms above my head and fingers reaching the other way, and Mel started to talk about how important my abdominal muscles were for running, and general stability, and to demonstrate she had her fingers on my stomach and was stroking circles around the muscles.

Then she said I was using my hip flexors too much, and both her hands touched my stomach and then stroked across my pelvis and along the top of my thighs and it sent electricity through my body. She kept talking, sometimes stroking my stomach and then moving back to my thigh, and all I could think about was how horny it was making me. I had my eyes closed and I wondered what my expression looked like.

I was brought around when she said “what do you think?” I opened my eyes and looked up at her and had to admit that I hadn’t been paying attention. I admitted I was too distracted by her hands on my skin. She smiled and said, “Oh, you mean when I do this,” and her hand circled my stomach and the edge of my pelvis. My eyes closed again and I nodded, and I heard her say, “And this?”, and one finger ran up and down my thigh and I took a deep breath because it felt so good, and I nodded my head again.

Then she said, “What about this?”, and suddenly her hand slipped between my thighs and she stroked right across my labia and up to my stomach. I think I gasped and I might have nodded.

“There’s a lot of tension in this body of yours,” Mel said, and her hand ran back down between my legs again.

The other hand was on my stomach as she continued to stroke, and then it began to wander upwards, slowly, and I was arching my back (verboten in Pilates!) as she reached the edge of my breast, and then the tip of her finger crossed my nipple and I realised I had my legs slightly bent and Mel’s hand was now firmly stroking between my thighs.

The sensation was intense as she massaged my breast, but then it reached another level as I felt her lips close around the nipple nearest to her. I heard a moan which must have been from my mouth, and from then on I was helpless as she stroked, kissed and caressed my body, bringing me to the most amazing orgasm within not much more than a minute. Honestly, a man might have the right equipment, but a woman really knows where the buttons are on another woman’s body.

I let out a long breath and she took her hands and her mouth away, and then place one last kiss on my stomach that made me jump. I knew she was still sitting there cross-legged but I was too embarrassed to open my eyes and see her looking down at me.

A minute or two passed before Mel said “I guess we’ll finish up there,” and I heard her stand up. I opened my eyes and put my clothes on, thanked her and came home. And now I don’t know what to think about any of it.

Today felt very disappointing after yesterday! I amused myself by messaging Ellie asking her how her night out was, and whether she accepted my dare to go in just her coat. She replied saying it was her turn to dare me so she wasn’t going to listen to a word I said until I’d fulfilled my side of the bargain. I told her that she couldn’t stall forever and if she didn’t think of something soon then the deal would be null and void. She said she’d think of something and I needn’t worry about that. I was getting quite excited by the little exchange, I have to say.

But other than what I think was flirty messages with Ellie I didn’t do much else other than chores and get ready for the working week.

I can’t wait to see what kind of dare she comes up with.

What an eventful day!

It started with the 9am park run, where I lumbered along, sweaty and sluggish, seeing Mel in the distance glide effortlessly over the grass. But my time improved at least. She suggested we could go for a coffee afterwards but a) after a run I’m in such a state that all I’d be able to think of was how bad I looked beside her and b) I was on a schedule as I was meeting Ellie. She seemed a little bit taken aback and I couldn’t tell if she was hoping to an invite, but I feel like I need to get to know Ellie a little better myself first.

While I was in the shower I was trying to work out how to work out whether Ellie was into this whole naked thing the same way I was, and then this silly idea came to me that I knew I had to go through with and I couldn’t stop giggling when I thought of it: I’d just see how she reacted if I wore nothing whatsoever!

Although of course I couldn’t quite wear nothing whatsoever, but ankle boots and my medium-length raincoat were the closest I could manage and still be decent from a distance.

The forecast was showers so the raincoat made sense, and when I met Ellie outside the café she looked remarkably similar, except I could see a skirt just below the coat, and she didn’t have it buttoned up the same amount as I did as she had a top on underneath.

I was feeling a bit naughty by then and we exchanged a kiss on the cheek each before we went inside. She put her coat on the back of the chair but, funnily enough, I kept mine on. There was a definite strip of bare skin down the front of my chest, though, and I know the waiter saw it so Ellie must have done. I so wanted to say something, but I also wanted to see if she’d work it out, or if there was going to be the right moment to reveal my secret (and maybe some more, if I got the chance!).

But we sat and ate lunch, and it’s not that comfortable eating in a coat but needs must, and I couldn’t help but quiz her about various things, like boyfriends (not had one for a while); girlfriends (never); what was work like (okay); what was the dress code like (quite flexible); what was her boss like (okay, but a bit of a task-master). But I still couldn’t get to what I really wanted to get to, which was to ask her about her about the crazy little exhibitionist streak I thought I’d seen.

After lunch we headed to the gallery and Ellie suggested heading to the cloakroom and dropping our coats off. I’m still not sure whether she suspected or not, but all I said was “do you think they’d mind a nude woman walking around their gallery?” and her eyes popped. She asked me if that meant I wasn’t wearing anything underneath and I grinned and nodded and she just shook her head. I said it would make the Mary Quant exhibition more fun, except we probably wouldn’t make it past the front door. She agreed and said I was crazy, and then I suggested maybe she could be crazy too.

I could tell by the way she laughed that she was tempted, but she said she wasn’t as mad as I was. I said she can keep our coats on, and she could keep her underwear on, and she said “What if I’m not wearing any?” and that brought a smile to my lips.

But I think I might have found a button to push, because as soon as I said “go on, I dare you” it was like I’d poked her with a stick. She said I couldn’t dare her to do something unless she could dare me, and I said sure, go ahead, do your worst, and I was half-hoping it would be something really outrageous, but she couldn’t think of anything. Or perhaps she could only think of one thing (actually going nude) and that was too far given we were in a museum.

So I said she could save it and dare me some other time, and I could see she liked the look of that, and it made me very happy that instead of heading to the cloakroom she headed to the bathroom.

When she came back she didn’t look all that different, to be honest, except for no hem of her skirt showing beneath her coat and that was itself buttoned up a little more tightly. But I told her I didn’t believe she was wearing nothing underneath and she had to show me, and she undid a couple of buttons and flashed half a boob at me. I joked she could still be wearing something on the bottom half and she said no way was she showing me anything else.

But off we went into the exhibition: two women wearing nothing but shoes and coats. It was immediately funny as they had to search our bags and probably wondered why Ellie had a skirt and top in there, but I guess they’re told not to ask questions!

Looking at high fashion when you’re also highly aroused is very much fun, though, and even Ellie seemed to have more of a spring in her step. As I stood beside her even if we weren’t actually touching I could feel the electricity between us. It was the best exhibition I’ve ever been to, entirely for that reason.

I was disappointed when Ellie said she had to go home afterwards, though, as she was meeting some friends tonight. I was hoping she’d come back to mine, or I’d go back to hers, and maybe she’d actually get naked. I dared her to meet her friends like she was now and she told me I was only allowed one dare per day.

Anyway, we had a hug and parted ways, and I found myself grinning all the way home and I hope Ellie was doing the same.

The weather brightened up today so I could wear something a bit lighter into the office. I realised it was a little low-cut when I saw Matthew and one of the other guys glance down at my chest as I was talking to them. Teasing a married man is a lot of fun, and I feel very naughty doing it. But I have my limits and I know I won’t cross that particular line. I’ll just do my best to make Matthew (and his trousers) a little uncomfortable from time-to-time.

I was still home early as I’m not really feeling like drinking too much at the moment, and there’s the park run tomorrow and I don’t want to let Mel down by being even slower than usual!

I need to get my social life into gear, and I can’t just rely on Ha all the time. I need to get some weekend plans in order, now that I’m not seeing Kieran all the time. And I also need to sign up to a dating site, I think, because I can’t see how I’m going to meet anyone any other way.

Pilates was doubly-hard this evening because I was still tired from Mel’s session. But it was also a bit of a thrill, because I could imagine doing it naked, which helped to numb the pain.

I still can’t get last night out of my mind. It gave me a spring in my step all day, which meant in the dreary, rainy, grey weather I was one of the few people smiling, and that despite my stomach muscles aching from Mel’s work-out. I wonder if she does massages…

But apart from working, nothing so much fun happened today at all.

Well things certainly took a turn today, and for the better!

The wind and rain came down like you wouldn’t believe it, and my umbrella barely survived the journey to work. It turns out knee-high boots have uses other than just making the wearer feel sexy because all the guys had soaked trouser legs! It was a bit cooler too and for some reason I was feeling a bit frisky this morning so I put some stockings on and a short skirt. I’d forgotten how good that combo feels when you have nothing on underneath, and a white blouse completed the look.

Then I got a message from Mel saying she could make running this evening, but given the weather it was understandable if I didn’t fancy it. I most definitely did not fancy it, but she suggested I drop by her place on the way back to mine and we could talk training plans! Which sounded pretty intense.

I got to hers soon after six o’clock and was kind of surprised to see she lived in a new block. I rang her buzzer and she told me to come up to the seventh floor, and then she let me into her very modern and very stylish apartment. It had wooden floors, white walls and full-height floor-to-ceiling windows and sliding doors out onto a small balcony, and great views out. It occurred to me it would be a great place to hang out naked because from a distance people might be able to see in once it got dark and the lights were on, but there weren’t any immediate neighbours.

Anyway, we got talking about how Mel was going to help me to achieve my goals. I didn’t realise that she used to be a fitness coach but she now worked as a life coach. She said she was good at getting people to do things that were in their best interest when it came to exercise, so it had seemed natural to turn that to everything else in life, right from work and career to friendships and relationships. She said we’d work on my fitness first and then she’d get to the rest of my life later, which sounded funny!

We got talking about the running, though, and she said that it wasn’t so much my heart and lungs or my legs that were the problem but my core strength and I needed to work that more and just keep running at a moderate pace and let the fitness come naturally.

I told her about the Pilates and about doing roll-downs and planks and wotnot, and she said that instead of wasting the time by not running tonight we should do some of that. I was still in my skirt, top and stockings (but my boots were at the front door) and said I couldn’t exactly do Pilates in my work clothes. Then she said that I should just take them off.

I felt kind of sheepish as I had to tell her that I, um, wasn’t wearing anything underneath, and she said she’d kind of guessed, and it didn’t worry her because it’s not like she hadn’t spent plenty of time with me naked by now already. She had a point, but it still felt weird as she sat there and we talked as I rolled my stockings down, unbuttoned my blouse and folded it over the side of the chair, and finally slipped out of my skirt. It was a new place to sit naked, I guess, and as ever with somewhere new my skin was tingling.

Mel left the room for a second and came back with a yoga mat that she laid out on the floor. Mel was in leggings and a tight top and looked every inch the fitness coach and she stood opposite me as I put my bare feet on the mat. Then she led me through the warm-up routine, stretching my arms into the air, bending at the waist and letting my arms hang, and all the time feeling as self-consciously naked as I had felt in a long time. It was even stranger that it barely seemed to bother her.

Then she had me down on my hands and toes in a plank position, and I nearly jumped straight into the air when Mel’s hands touched either side of my hips and rotated them slightly into a better position. She said something about tucking my pelvis in, but all I could think of was that a woman’s fingers were on my bare skin.

But then it was like it was open season on my body. I was standing in a squat position with knees apart and feeling intensely vulnerable with my arms straight out sideways, and again Mel’s hands touched the bottom of my spine and my stomach and nudged me into position. Or rather, I flinched into position because after a few weeks without sex I was extremely sensitive.

I couldn’t get over how at ease Mel seemed to be with me moving from one naked pose to another in the middle of her flat, especially considering how difficult it had been to read her when we first met. Perhaps it was the case that nothing fazed her.

Mel put me through some cool-down stretches, and then we sat and talked about what to do next, while I sat there naked and Mel got me some water. If she noticed my body it never showed. But she did say that it was so much easier to see which muscles were working and which muscles weren’t when there were no clothes to get in the way. In fact, she said, rather than running together on a Tuesday, we should do some more sessions just like this one every Monday evening.

I felt strangely disappointed when it was time to get dressed and come home again, but the memory was fresh enough that masturbating came easily, and then dinner afterwards, because all that erotic exercise had made me hungry.

I can’t wait until next Monday now, and I’m not one-hundred percent sure if Mel means me to do it naked again but, whoops, I might accidentally forget my gear anyway.

Today was chores day, but at least I made it naked chores day. I was feeling a bit mischievous so I sent Ellie a message, just asking her how things were and wondering if she wanted to meet up again. I didn’t get a reply until this evening as she’d been out of town. I feel a bit out of touch with her now I don’t get to stalk her once a week in an office and now I’m not even sure if all my assumptions about her exhibitionist side were right or not. I don’t want to push it too hard or she’ll think I’m a weirdo.