I thought I’d write to you with an update of my wife Jennifer’s sexual adventures. Following our first encounter with Simon – now my wife’s regular lover – she developed a new itch to scratch. Jen told me she’d always wanted to try a threesome and taste another woman’s cunt – she let me know that I could watch if I wanted – and she had an idea about how to make it happen. Between us we hatched a plan with Simon and had a real good fuck after working out the details.

So it was that a couple of weeks ago Simon brought his new girlfriend, Cassie, to our house to meet my wife.

‘Jen’s been looking after me since I moved,’ said Simon. ‘She’s been like a mother to me.’

I don’t think Cassie had much inkling that the ‘looking after’ consisted mostly of draining Simon’s heavy balls of cum and letting Simon use her like a slut.

I am hiding in the spare bedroom – Simon reckons Cassie is young and inexperienced and possibly wouldn’t go for an audience – Jen has been keeping her fingers crossed that she won’t mind the attentions of a middle-aged nympho with a yearning for some young twat!

My cock is already hard whilst I can hear them downstairs having drinks and I’m finding it difficult not to bring myself off straightaway. Jen comes upstairs to look in on me, telling me about young Cassie – she’s short and slim, hair blonde and shoulder length with a narrow waist and small arse, pert upturned breasts. She also tells me she’s wearing jeans and a low cut tee which shows off what cleavage she’s got to best advantage.

‘So they’re not a patch on your knockers then,’ I said grabbing a handful of firm titflesh.

The plan is for Jen to get Lauren upstairs on some pretext and take it from there.

Jen heads off back downstairs and I hear both of them come back up a few minutes later, my wife saying, ‘They don’t fit me anymore so you’re welcome to them’ and leaving the bedroom door open as Cassie starts to try on some of my wife’s old clothes. I leave the spare room door open a crack so I can hear them better.

‘You’ve got lovely small boobs, Cassie.’

‘They’re not nearly as nice as yours, I’ve always wanted to be bigger. What do they feel like?’

‘Why don’t you find out for yourself?’

Then I can just about hear my wife murmuring softly, ‘That feels very nice, Cassie. Don’t stop.’

At this point Simon comes upstairs and I hear him say, ‘Well, well I didn’t expect to see the two of you lezzing out!’ as he enters the bedroom. From what Jen tells me later this is what happened next.

Simon goes over to the pair of them to get stuck in but my wife tells him to lie on the bed.

‘If you want to see some girl-on-girl then I’m sure Cassie and I can oblige.’

Jen is standing behind Cassie, a good head and shoulders taller than her, pulling her top over her head, cupping her small breasts, nuzzling her neck and nibbling her ear. Cassie puts her arms back over her head running her fingers through my wife’s newly-cut short black hair. Having removed her bra Jen rubs both Cassie’s nipples – they are pale and puffy – but they soon stiffen under my wife’s ministrations. One hand moves down the front of her flat stomach into the top of her trousers, undoing a button so she can slide a hand down the front of her pants