I rang Dave and Sue two days before the first proper meeting with their instructions for the day just as I'd said i would. Dave answered the phone and quietly listened as i told him what i wanted from him and his wife, i finished my instructions with the meeting arranged for the same service area as before but this time it would be in the car park. Again it would be during the day to maximise their humiliation with the very could chance of being seen and before putting the phone down i cautioned them both on the merits of doing as they were told and remembering all their instructions from their interview. I arrived at the service area five minutes early and was pleased to see a car parked in the farthest corner of the car park. As i pulled into the space directly in front of the other cars windscreen the couple in the car unfastened their seat belts. I guessed Dave and Sue had only just arrived or were making a show of staying strapped in until they knew i was there and could start. I watched knowing what was to come but still hard at the thought as Sue unbuttoned her white blouse to the waist, then held it open to let me see her. She had smallish, pert breasts but her large nipples complimented the way they jutted out and slightly up and after a couple of minutes she raised her arms and took hold of the seat behind her head. This was the cue for Dave to lean over and start to suck on her nipples until they were as hard as he could get them and then to bite them lightly but firmly whilst gently pulling on them until they were sensitive enough to remain hard for a longer period. Dave pulled back to admire his work and Sue remained in position to make sure i could see her properly. I let her sit there for a few more minutes then nodded my satisfaction and Sue buttoned the bottom three buttons on her blouse to leave just enough of herself on show not to get arrested as they walked over to my car. They both sat in the back waiting, Sue's nipples still impressively hard through her top. OK, take your trousers down, i want to see what knickers the slut has picked for you to wear for me, i told Dave. He duly complied and sat there with his legs apart, trousers around his ankles and a fully erect cock sticking out above a very small, white lacy thong. Very nice, i told him, then met Sue's eyes as she glanced my way, biting her bottom lip in nervous anticipation....... i waited and it got the better of her. Please sir may i touch it, she finally blurted out, touch what?, i asked. Please sir may i touch his cock, she stammered, almost breathless with excitement. No, i told her, brutely and sharply, she looked crest fallen and for a minute i think she considered touching her husband anyway, so i starred at her and raised an eyebrow banishing the idea in an instant. As i started the car i told her to take his cock in her mouth but not to suck it or move up and down on it, asking her if that was clear. She answered with a quick "yes sir" then took hold of Dave's cock before lowering her mouth over it. Did i tell you to touch him, i said, her hand let go, forcing more cock into her mouth as she now didn't have any means of holding herself up. Now, i continued, you will stay like that while your husband gives me directions to your house, do not let me catch you sucking him. And off we went, Dave's directions getting more and more garbled as he tried to concentrate on the route with his wife's mouth clamped around his cock and the fear of being seen fighting for presidence in his mind. We're almost there, he informed me through gritted teeth. Good job we havn't been stopped by the police for you two not wearing your seat belts, i told him. He groaned, please sir may i come, he asked. I told him no but the constant speed ramps of the last three streets before their house were taking they're toll on his wife's cock sucking ability. Please sir, he was now pleading. No, i repeated, i then told his wife to bite down on the base of his cock and to keep it clamped between her teeth until we were on their drive. The last speed ramp before pulling onto their drive made Dave groan for a totally different reason, his wife's teeth had had the desired effect. I told Sue to sit up and then told Dave to put his now deflated cock away and pull his trousers up. Once dressed we all got out and went through the front door into their hallway. Dave turned and locked the door then he and his wife stood holding hands awaiting instructions. As this was their first meeting i told them i would be inspecting their handy work on each other with a razor so told them to go into the living room, strip down to their underwear then come back and stand in front of me with their hands on their heads. They dutifully filed out of the hall to get undressed and two minutes later were back in front of me with their hands on their heads looking sheepish. Dave looked embarrassed, stood there, again struggling to keep his newly hard cock under control in the white thong that was surprisingly similar to his wife's, which was a nice touch. I pulled Sue's knickers down first then told her to spread her legs. Completely shaved, Dave had done a good job, she was smooth and very soft without a hint of stubble as i stroked her. My fingers brushed over her exposed clit, which was as swollen as her lips and she shuddered at the touch, so i plunged two fingers, knuckle deep straight into her. The shock made her gasp but she remained still, hands on head and her legs apart, enjoying the look on her husbands face. I pulled them out, made her lick them clean then told her to pull her knickers up and resume her postion. Once her hands were back on her head i moved on to Dave and pulled his knickers down so his aching cock could breath at last. I could see he was uncomfortable with the action, you could almost feel it in the air, so rather than touch him, i reached over to the table on the side and took a pencil off the note pad there. I then held his cock to one side with it as i inspected Sue's handy work as his cock leaked just inchs from another mans face. His humiliation was now very plain to see and when i told him to pull his knickers up i thought he was going to faint with the relief. Once he'd done that i told him to go into the living room and wait for me and then sent his wife to their bedroom until i was ready for her. I unlocked the door and quickly went back to the car to retrieve my bag that I'd forgotten in the excitement then returned to Dave in the living room. A quick scan round the room found me a dining chair that i needed for him, so i told him to get it, place it in the middle of the room and sit down. I then opened my bag, took out a set of wrist restraints, threw them at Dave and told him to strap one to each wrist, take his knickers off then sit back down. Once he was sitting i told him to push his cock down and hold it against his thigh. He managed but his face told me his erection was making it painful, "hold it there" i ordered. I then took a strap out of my bag, placed it around his leg, over the length of his cock and preceded to cinch it tight as he held his cock in position. Dave openly groaned and his cock was leaking again, i think the strap was just in time and there was no way he was going to come now. He was told to let go and as his hand came away his cock strained against the small amount of the slack in the strap. I then told him to put his hands behind his back and i clipped the two restraints together through the bars in the back of the chair, effectively immobilizing him. As i stood admiring my work i could see Dave starring at my now obviously hard cock, don't worry thats for your wife, i told him, it's her turn next. Then left him and went up the stairs to find Sue sitting on the edge of their bed waiting. She was tweaking her nipples as i walked in, trying to keep them hard as she had been instructed at the interview. I told her to stop and put her hands on her head for me as i took a set of chrome nipple clamps with a silver chain attached out of my bag. I clamped one to each nipple, letting the chain hang between her breasts. I picked up my bag and placed it on the bed at the side of her, then told her to get on her knees in front of me and take her knickers off. Once she was down i got undressed, putting my clothes next to the bag as i took a collar and lead out of it. As i stepped back in front of her she starred up at me looking flushed then gasped as i took hold of her pony tail and thrust her face against my cock. I told her to hold it against her cheek until i was ready for her, her hand came up and grasped hold my sticky cock. She stayed like that, as i fastened the collar and lead around her neck, her hand making ever so slight movements up and down, pumping pre-come down her cheek. Pulling her up by her hair, i told her to stand, then lifted the chain on the clamps to her mouth. Hold this in your mouth,i told her as i pulled it up the last couple of inchs to reach her open mouth, the chain pulling the clamps up with it making them bite into her nipples a little harder and pulling her breasts up with it. She groaned through the chain in her mouth as i pulled her back down the stairs by her lead towards the living room. Running out of time again folks will give you the final part as soon as i get the time.