.." she replied and made a sad face, wishing that Mark could take her, but he couldn't and that was that. "I'm going to run and get my clothes, then p...t them next to the fire." Helen said as she jumped up and ran to her bedroom. Mark thought of his Mum's words and it would be nice to make love in the morning light, but she was his Mum and it would be wrong. "I could too," he said and loved the sight of his Mum's big butt wiggling in her knickers. She was back in few seconds and laid her clothes. She slowly removed her fingers from her pussy and brought them to her lips. She traced her pussy juice soaked finger along her upper then lower lip, then let her tongue slide slowly out as she licked them clean.He growled a low deep growl and moved to her. He grabbed her chin and tilted her up and kissed her deeply. He grabbed both her legs under her knees which forced her to put her hands back behind her and brace herself. He aligned his hard cock with her pussy and rammed it inside of her. . This was an amazing fuck and I just tried to relax and enjoy it.I was on my elbows and knees and I was actually pushing back into his thrusts. Just as I felt the tip of his cock hit bottom I felt something else. A hard mass at the entrance to my pussy. I knew this was his knot and I reached back with my hand to feel it. I guessed it to be about the size of a lemon. He was trying to get it in me. I was already pretty full of his cock. He kept pressing it in and I let him. The tip of his cock was. "I want a nice long shagging when we get home" she announced grandly and bent forward so I could finger her sexy little bum hole,"You know now that we're both earning good money, very good money" I said thoughtfully,"Yes?" Well I was just thinking that we could get married" Married?" she said looking rather stunned,"Yeah, why not?" What about your mum and dad, will they agree?" Oh yeah, I don't reckon they'll be bothered either way" My mum reckons you're the bees knees, so she'll agree, yes.