I looked down to the most beautiful pussy I would ever see in my life. She spread her legs and then reached down and spread her pussy lips. It was pin... and wet,"do you like this baby, do you like mommy's pussy".I just nodded as I was staring at her pussy, my cock was throbbing in my hand, I could barely move. Then it struck me that I needed to taste her and I feel to my knees and before she could move I buried my face into her pussy. I stuck my tongue out and started licking, it was sweet and. I really felt marred, “Do I have to….”? I said.“I do not want you to… BUT You cannot cum in me…” she reminded me.“Can I keep it inside you, just a bit longer? Please? I promise to pull out before I feel the urge to shoot. I will, I promise”. And she consented.For a little while, I did not move or anything but then nature took over and I simply could not resist start slowly moving my cock back and forth in her pussy and rapidly developing steady fucking motions. I heard my slutty sister enticing. She went to another room an returned without the phone and a glass of wine. She was a very sexy BBW wearing a red nighty and a black housecoat. We chit chatted for about 20 minutes when I finally asked her if I could rub her leg because I wanted to see the contrast of skin tones, she said of course. I rubbed her leg higher and higher when I finally touched her pussy and it was soaked. She immediately turned to kiss me. We sat there for while actually sucking on each others tongues while I. They drug the generator and welder to the door and welded the break in the metal then put everything away and closed the container once more. As they finished, Marty said, “I’m afraid I won’t be able to weld much longer. I Don’t have much gas left and even with the stabilizer I’m afraid it’ll go bad soon even if I don’t run out beforehand.”That evening they talked so late Marty said, “Rebecca, it doesn’t make much sense for you to go home this late and I worry about you traveling in the dark.