H and l had been having an affair for 6 months or so and it had slowly got more and more adventurous I have been in the scene for a number of years but it is fair to say H was very vanilla and hadn't really experienced much apart from normal sex Bit by bit she started to experience new things The list was extensive and adventurous. First time to have sex in an office, first time to be licked, first time to be in stockings and heels, first time to give a full blow job and taste cum, first time to gush, firt time to have and use a sex toy ...the list went on and on Whilst chatting in Whats App i suggested a Group chat with a friend of mine so i could watch her flirt with another guy and see him wanting her She replied "ok but what if it ends up in an threesome" i said "would you" she said "maybe" For a few weeks there was group sex chat between the 3 of us and many exchanges of pics and every time we met the subject of a threesome came up. We agreed that when we were scheduled to have our next Saturday meet up we would visit my friend for a coffee and a photoshoot He has a room set up as a studio and dare l say it myself takes very good pics We agreed that if things developed then we would go head but had a safe word in case The photoshoot would be normal smart dress to start and then she would change I picked her up from her apartment and we started the 20 minutes drive to his she was both nervous and excited We chatted about what may happen but she was insistent that nothing should be taken for granted On the way over i stroked her legs in the car and heard her groan a little, i could resist so pushed her panties to one side and started to play with her already very wet pussy. She was soaking wet I played her clit and put 2 fingers in her deep and she was very very close to cumming when i stopped to leave her as horny as hell and extremely frustrated My friend greeted us outside his Vila and gave H a polite peck on the cheek Inside we sat on a sofa he sat opposite and we chatted, he went and got us some drinks She turned to me and said "can we forget about the photoshoot lets just go to bed" i said "no wait" and with that put my hand under her bum and fingered her wet pussy. After a while the 3 of us went upstairs She was dressed in a plain blue summer dress short to the knees and high heels For 30 mins he took nice and saucy pics of her posing and showing a glimpse of thigh and her beautiful face, she was starting to relax I then suggested why don't you change , with that she disappeared to the bathroom When she returned she looked a shot as hell She had on one of my old work shirt but underneath, black hold up seamed stockings, black bra and panties and lovely very high heels, she looked amazing. Both him and me were impressed and as horny as hell. She then posed for him (he was using my camera now as we didn't want her pics shared). She had grown in confidence and loved posing. Pretty soon the work shirt had come off and she was posing in some very tasteful but erotic poses He encouraged her to undo her bra and he took some very good implied topless poses before her bra just slipped to the ground, She was stood there in just stockings heels and panties At this point i decoded it was time to stop the photoshoot and see what would happen next. TO BE CONTINUED