“Stan and Kelly and your mother and I will swap bedrooms and beds until we can expand the master bedroom through renovation and get a much larger be.... It will be a proper foursome ... in most ways, at least. Stan and I aren’t ... into each other, of course. At least not yet,” Dad blushed a little as he informed us of what I suspected.Yeah, I knew it! This was coming. This was coming as soon as they spent that much time with Stan and Kelly in such an intimate arrangement. Regular, unprotected. I could feel that my rectum was really gaping open by then (just a dull ache back there) my gut had a sore spot deep up inside and I did really ache from end to end. Once everyone was gone my ‘bouncer’ locked the door, came to the bed stroking his meat and said, “My turn again bitch…one last fuck then I’ll see you in the morning for sure.”He rolled me onto my stomach, put my legs together and mounted me after giving my ass a good hard slap. There was no need for any lube (there hadn’t been for. “Welcome to the family son. You look after my little girl. If you don’t, I’ll sick Justin on to you.”Diesel laughed, “That is more than enough incentive for any man. Did Justin ever tell about when he beat the crap out a bloke for dissing Jennie and then trying to feel her up?”“No, he did not, tell me more,” Allan said, walking off with his arm around Diesel’s shoulder. He loved hearing about his kids from others. He was sure Diesel had lots of good stories; he wouldn’t have heard.Ariel giggled. Soon I felt the touch her groin over mine. I felt the outline of her soft hairy pussy lips rubbed against my pubic hair and soon after that she began to move upward again. My dick head almost slithered out of her slippery hole, but she captured it quickly with one of her hands. Instead of putting it back into her hole, she rubbed my dick up and down the length her pussy specially at the little bump hidden at the top between her pussy lips. A moment later she again pushed my dick back into her.