With Boyd now it his first of of college he managed to get Kristen to go to the nearby high school to run track with him and afterwards, they would drive to a nearby secluded park and fuck like two high school kids.
Kristen would do anything for her son, especially after he had perfected his oral skills and his adept way he could make her cum several times before planting his seed in her.
After a short four months since their first sexual encounter, Boyd had managed to get Kristen back to her original figure.
Kristen was so appreciative of his help and constant hounding, some of which she hated, but knew was for her own good, she had a special week planned just for him.
After cleaning up the mess Boyd made filling his mother with cum, they headed back to the house.
On the way there Kristen chuckled, "You know Boyd, it's crazy, you can fuck like a pro. I love that you transferred to UC Denver. I hated you so far away, not no longer.
He chuckled, I love being close to you Mom, but I miss my college friends"
She rolled her eyes, "Listen, I have your dad and Kyle going to Canada for a week. So what do you wanna do all week long?"
He scoffed, "Aw, let's see. We could run track every day, maybe twice a day, or....."
She giggled like a school girl, "I think I like the "OR" a lot better. By the way, what is your "OR"?"
He blushed, "How long before they leave?"
"You have a week."
He flashed her a sly grin, "Great gives me a week to plan. All I can say is you better rest up now, you may be losing a few more pounds....The fun way!"
She pulled the car over to a secluded spot and pulling his pants down, she sucked him off and kissed him afterwards with cum still clinging to her tongue.
When they arrived home Boyd raced to his bedroom and began compiling a list of things to do next week with his mother. Halfway through the list he had to stop and jack off, he was that turned on by his list. One of the things he wanted, he slipped Kristen a note and she read it and winked.
Kristen was at the hairdresser the day before Ryan was to leave for Canada. She was fulfilling one of Boyd's requests. She was going to have her way with him in so many ways, she was giving him this one. She was excited about it too, she just hoped Ryan didn't want to fuck her tonight. She was saving herself for Boyd in more ways than one.
Boyd was still in his pajamas and Kristen was in a slinky satin slip, covered by a thick terrycloth robe as they stood on the front stoop waving goodbye to Kyle and Ryan.
As soon as they were out of sight, Boyd took hold of Kristen's hand and pulled her back into the house. He locked the door and turning to Kristen, he unclipped her long newly dyed dark auburn hair. He combed his fingers through it, "Oh fuck Mom, you look so incredibly hot, but first, my first fantasy." He kissed her reveling in the silky hair. He pulled back and untied her robe and slipped it from her shoulders and it crumpled down about her feet.
Boyd stared at the sleek body of his mother and his swollen cock grew stiff and pushed wickedly against the front of his pajamas. He slipped them off, having a issue getting it over his hard-on. He managed it and stood before her naked. He pulled the blanket off the back of the sofa chair and placed it on the sofa behind her. He patted the seat, "Sit down here, but not before you remove that sexy slip. I want you here in all of your naked glory."
She let out a groan, "Oh my God Boyd, how corny, but very nice." She licked her lips and slipped the straps off her slender shoulders and tugged hard and it dropped down past her newly smaller, but firm and perky tits. Unknown to Ryan, she spent a weekend at a spa and had them surgically enhanced, not larger, but firmer and perkier. She was devastated when Ryan didn't notice, but Boyd surely did. Now he was going to get to enjoy them for an entire week.
She stood there with her hands on her easily visible slender hips, "Okay now what Boyd?"
He drew another blanket off the back of the sofa and threw it down and took a seat at the opposite end of the sofa, "Please take a seat on the other end Mom." He waited for her to get comfortable. He drew in a deep breath and pulling a slender box out from the cushion and handed it to her, "Okay my first fantasy is a little bit of mutual masturbation. I've always dreamt of watching you and having you watch me, what do you say?"
She took the slender box and opening it, she handled the slender dildo, "Oh wow Boyd, this is nasty, I LOVE IT!" She kicked off her slippers and planted her feet on the sofa and facing Boyd she turned the vibrator on and began to tease him by running it up and down her slender, firm legs. She rolled her head around sending a waterfall of dark auburn hair across her shoulders and covering her tits. Her eyes grew darker when she saw Boyd pick up a bottle of lube and pouring a few drops in his palm he began stroking his cock slowly at first. He squeezed harder as he watched his mother sink the vibrating dildo into her tight, juicy hole. He let out a gasp. "Squeeze your nipples Mom, I wanna see you make they stiff."
Kristen was breathing heavily through her mouth as she did as she was told. She let go of the vibrating dildo. It was deep in her juicy hole and as it swished around in her tight hole, she tugged, twisted and pulled at her own nipples. She closed her eyes and growled out, "Oh fuck Boyd, this was an amazing way to kick off this week." She rocked her hips as she began to shake and tremble as she started cumming.