I take the coffee over to the bedside cabinet as Diana sits down on the bed. As I'm straightening up from setting the mugs down, she reaches over and slides a hand onto my waist. I turn and see her gazing up at me, the seriousness of her expression again vying with the blatant desire in her eyes. Her hand drifts down over my hip, down off the t-shirt and onto my bare leg. I move closer, to stand in front of her, and nudge her feet apart with mine. The touch of our bare feet sends a little jolt of pleasure through us both and I hear her catch her breath. Her fingers stroke the back of my bare thigh, as I stroke the top of her foot with my toe for a moment. Instinctively, I bend the leg she's touching, pushing it between her knees and liking the ripple of her pyjama trousers on my bare skin.

She pulls herself forward to sit on the very edge of the bed and I put yet more weight on my hip so that my leg bends further and my knee can brush the damp crotch of her pyjamas. Her hand slides up my leg under the t-shirt, onto my bottom, and she squeezes gently, as if to keep my leg in position. Her head moves in and she brushes her mouth over the shape of my breasts in the t-shirt, making me murmur in pleasure. I slide a hand into the collar of her pyjama jacket, to hold the back of her neck and rub my thumb over the short hair at the nape. Her turn to murmur.

She moves her head over my abdomen as I slowly lift and drop my heel, making my knee press up against her. She moves both hands to my hips and lifts the t-shirt gently, holding it bunched up on my breasts as she grazes her mouth over my bare body. She plants tiny, sexy kisses in a random pattern, moving slowly up to my breasts again. She lifts the t-shirt higher to expose my breasts and bunches it in one hand, using the other to hold my hip as her mouth closes round one of my straining nipples. I give a low groan as the intense pleasure washes through my body. She starts to lick slowly, feeling the length with her tongue-tip, and with each time a little jolt of excitement earths itself directly between my legs. She seems to sense this and moves her hand off my hip, round over my navel and down between my legs. She brushes me with her wrist before turning her hand and moving it back to my hip.

I take hold of the t-shirt from her and grasp it bunched up above my chest. She moves between my legs and uses both her hands to guide me down to sit on her knees. I rest my own knees on the edge of the mattress, either side of her hips, and groan again as she takes my breast back into her mouth. One of her hands caresses my thighs and her thumb begins to circle lightly on my sensitive clit. I close my eyes and rest my head on her shoulder, gasping her name in delicious arousal as I kiss her neck. The pleasure throbs deep inside as she finally enters me with her fingers.

***

Afterwards, I take a gulp of coffee with slightly shaky hands while Diana undoes her pyjama top and drops it on the floor. I stand up off her and pull the trousers off her legs as she lies back on the bed, then drag my t-shirt off over my head and kick the small pile of clothes out of the way a little. She looks so beautiful lying naked on my bed, I notice through the fizzing turmoil of my arousal, as I climb onto the bed in front of her and kneel between her raised legs. She wriggles backwards and lets me part her thighs gently with my hands as I begin to kiss my way up the insides of them. She buries her hand in my hair to lift a thick bunch of it out of my face and away from her crotch, and I grip her thighs as the sweet tang of her arousal fills my head and my heart beats faster with the anticipation of tasting her.

I don't rush, but don't linger too long either. She likes me to be agile with my tongue, to use as much of its length as I can manage. And, similar to Catherine, she especially likes it if I've had a swallow of coffee first, to warm my mouth.

***

It's mid-morning by the time we decide we perhaps ought to get up again. We dress haphazardly, knowing we'll be bathing and dressing up later. Diana pulls on old jeans and a short-sleeved shirt, and I dig out a pair of denim shorts and pull on my t-shirt from earlier, not even bothering with a bra. Diana tidies my bed then works on her speech for the college dinner for a while, trying parts out on me while I make us eggs on toast. After lunch, we fill the time until we slowly have to start getting ready by reading the papers and sitting in the garden, chatting and generally being lazy.

Eventually, I start running the bath and perch on the edge of the tub in my t-shirt and shorts to work in some relaxing bubbly stuff. I remove the three-day old nail polish from my toes, in preparation for applying a fresh layer for the evening. I hear Diana come upstairs after having ironed her blouse and go into the bedroom for a moment, then she pushes into the bathroom. She is naked, carrying just the towel I've lent her for the weekend, and I feel the inevitable flutter of interest. I hope I never get used to seeing her naked, never lose that tiny thrill. I know she notices me take in her body. Her large, beautiful nipples are erect and prominent.

She looks at me, flicking her gaze over my body and legs, then lingering on my bare feet where one is resting on the side of the bath and I'm balancing with the other, my toes on the floor. I smile up at her and wipe my feet with a tissue, lingering over the length of my toes where she's watching, then stand and put the little bottle of varnish remover back in the cabinet. She steps into the bath. She slides down into the water, grinning widely at the pleasure of it, then turns to rest her head on the edge of the tub and watch me openly as I undress. I do so unhurriedly, knowing she's enjoying the sight.

I don't need it for my balance or anything, but she reaches out and holds my hand as I also step into the bath and lower myself to sit facing her. We manage to accommodate our legs with a bit of shuffling about, and both relax back to enjoy the sensation of the hot water on our skin. I manage to find an angle where I can lean back comfortably without the tap digging in to my shoulder.

The way our legs are entangled, my foot is resting against the inside of her raised thigh and I stroke it over her wet skin gently, under the water. She's leaning back with her eyes closed, relaxing, but I know she can feel my foot. She likes to kiss my feet sometimes, with a definitely erotic purpose, and I like it that she finds them sexy. To stroke the inside of her leg with my toes excites me now and I feel my heart beat faster at the sensuality of it. She keeps her eyes closed, but I can see her breathing quicken slightly, and her knee breaks the surface of the water as she twitches her leg under my foot. Her mouth opens slightly and it excites me that her lips look so kissable but are out of reach (without a lot of disruptive shifting about.)

I find I can reach her knee and inner thigh with my hand, so I start to stroke her smooth wet skin there, while I gently move my foot over the soft flesh right at the top of her open legs. Inevitably, I find my foot brushes her crotch lightly, and it arouses me that each time it does she gets an obvious and powerful thrill. I bite my lip and decide to be more bold, and am rewarded by seeing and hearing her hold her breath as I move my big toe to rub her clit clumsily. I hadn't intended to touch her with my foot, but now I am it really excites me that it so obviously turns her on.

'Fiona?' Her voice is a hoarse whisper. 'What are you doing?'

I giggle. 'What does it feel like?' I roll her clit between my big and second toes.

One of her eyes struggles open to look at me, although I notice she can't help flick her gaze down to my foot as well for a moment. 'You're teasing me,' she groans, closing her eyes again and licking her lips as she rolls her head on the edge of the tub. One of her hands strays instinctively to her breast, and she begins to pinch her own thick, brown, erect nipple.

I realise with a burst of excitement inside that she's really aroused, not just a little bit turned on. I do love giving her pleasure when she's not expecting it – and being Diana, she virtually never expects it, of course – so it's a constant surprise for her and a constant delight for me. 'Mmm-hmm,' I answer softly. 'Teasing your clit, in fact.' I manage to circle my toe over her rhythmically for a second or two, and like the way she moans quietly. 'I have a reputation for it, you know.' I increase the pressure of my toe on her a bit and feel her squirm slightly in the water. We've had enough sex now for me to recognise the signs when she's very close, although I can never predict when she'll get to that stage beforehand. But the element of surprise makes it that bit more wonderful every time it suddenly happens. 'Do you want me to stop?'

'Fuck no,' she groans. 'Oh, Fiona...'

I had no intention of stopping anyway, and I watch with delighted amazement as she presses herself onto my circling toe and trembles slightly as the pleasure begins to overtake her. I always love seeing her reach this stage. 'Diana...you're so lovely...'

'God, Fiona...oh...oh my God...yes...' She reaches out blindly for my hand and twists her fingers in mine as she reaches the peak of her pleasure. 'Fuck...oh, Fiona, yes...oh...ffff...' She squeezes my fingers hard as she tips over the edge. 'Fiona, oh...ohhhh...'

***

I turn round in the bath and sit between her thighs, nestling in her arms so we can cuddle for a while. After a bit of a snuggle, we use the shower to wash our hair, then reluctantly get out and towel each other down. Although that is in itself usually quite erotic (when we've done it after a shower together, for instance), this time it feels more cuddly than anything. The hint of sexiness is still there, but it's as if we have an unspoken agreement to save it for later, after we've got back tonight.

***

Diana is ready before me, of course, and props herself up on the bed with her hands behind her head, to watch me as I finish pinning my hair up, applying make-up, painting my nails and dithering over which earrings to wear.

With a gentle tut, she gets up and stands behind me, reaching round to touch the pair I tried on second. 'Wear those, Fiona. They're lovely.' She leans in and kisses my exposed neck between the collar of my dress and my pinned-up hair, making me shiver slightly in pleasure. 'We really ought to be going.'

On the way our of my room, on the landing, she catches me and tuns me round, pulling me against her for a long moment as we kiss intensely on the mouth. She tells me I look gorgeous, and I tell her I'm pleased she thinks so. Even though I always enjoy looking nice, I particularly enjoy doing so for Diana, and this evening means a lot to her. So it's important to me to be just right for her, It's her way of acknowledging our combined efforts in the fraud case, but also I think is her way of gathering some of the few people around her that she genuinely likes and respects, in order to show them how much she appreciates them.

It makes me very happy indeed that I am one of them, have my own special place in Diana's affections. And to my intense pleasure, the look in her eye as we separate and make to leave the house makes me think that I've got things just right for her.