As the contractors left for the day, my wife did come to say hi...albeit reluctantly as she felt she looked dishelved from all the work in the house. ...he walked towards us, and i felt equally grateful that she took the afternoon foreman duties for me and that she was walking to the car braless. The pendulums of her breasts swaying with each step as approached the car and proceeded to explain her abscence. At least i think thats what she was saying i was too busy in my head wondering if Astrid. Then she rolled off some tissue and dried my private areas for me."I though you might need to take the edge off a little. Lets go back and see what trouble my sister has gotten into while we were gone." Sister" I asked with a surprise tone in my voice. "I thought you two were lovers." We are" she replied with a laugh and a smile. "We are and that's that. We just happen to be lovers who are also sisters. Does that shock you?" Well, maybe just a little. But it also seems to be a turn on, too.". Finally, Ben stopped his thrusting, so I could concentrate on sucking out every last drop of Don's cum.Ben wiped sweat from his brow and patted Don gently on the ass. "What now?"he asked me."Are you willing to do anything for me?" I asked Don.He rolled his eyes and laughed. "I've pretty much done everything at this point, right?" he asked.I looked into his eyes and felt such love for him. "I want to watch you suck Ben's cock and then I want to see Ben cum on your face." Oh, only that," Don. "Richard and Francis, Melanie and William and last but not least, Sally and Ronald. Don’t forget, the first name called is the leader, now strip off and explore each other’s body, but above all, remember to talk and learn from each other. We are here if you have any questions." With that, Ann and I sat down on the edge of the platform and watched as they settled down and took off their clothes. Some of them shyly, some with panache and the others indifferently. The breasts as they were.