Benjamin knocked on the door and heard his mother's voice from inside.

"Come in!"

He entered the home office, a medium-sized room with a large desk at the center and a large sofa on one side. His mother was sitting in an office chair, in front of two computer screens, looking up at him when he came in. She had tied her brown hair with a stylish accessory and was wearing a nice white blouse shirt as well as a comfortable blue skirt. Her brown eyes instinctively scanned him from top to bottom, as if checking that everything was alright with him, before smiling affectionately at him.

"Mom, I am not disturbing you?"

"Not at all, darling. I am almost done for today, just one last mail to send and I can call it a day. What's wrong? It's rare of you to come here."

"Nothing special, just checking on you. How is work going?"

"Same as usual, it's going well. Wait a minute, let me finish this and we can talk, ok?"

Benjamin nodded and she started to type quickly on her keyboard. Soon after, she clicked a few times and she was done, grandly stretching herself and massaging her shoulders. Benjamin noticed it and asked her.

"Mom, do you have stiff shoulders?"

"Yes, that comes with having a desk job. Sitting on a chair and typing the whole day doesn't do any good to muscles and joints. And these only make it worse."

She put her hands under her large breasts and cupped them up and down. Benjamin's gaze couldn't help focusing on them. He remembered how the girls didn't consider their boobs as anything special in this world, as evidenced by his female classmates going shirtless during the last PE class. This gave him an idea.

"Mom, can I see your chest?"

She looked at him, surprised, before grinning meaningfully.

"I see my son is already at the age of being interested in girls' bodies. Of course, you can. My breasts are not as nice looking as back in the day, though."

She unbuttoned her blouse and removed it, followed by her bra, placing them on the table. Her massive tits came in full view. They were indeed amazing, her darker areolas revealing well-shaped sizeable nipples. They were sagging a bit, probably due to the combined effect of their weight and her age. Benjamin came closer and inspected them for a while before exclaiming.

"Oh I know, Mom! Since you have stiff shoulders, what about I give you a massage?"

"Ahah, what's going on with you? Do you need some pocket money? You know you don't need to do that, you can just ask me directly."

"No, I don't need anything. I just want to spend some time with you and help you feel better if I can."

His mother smiled happily and caressed his hair.

"My son is a darling. Alright, I will take on that generous offer, then."

She didn't even question if he was saying the truth or not. Her doting and adoration of him clearly knew no limits. Even his easy-going grandmother had questioned him initially.

He went behind her chair and thought about how to do this. Even though he had proposed it, he had never massaged anyone before. In this case, it was better to be honest about it.

"I have never done this before so tell me if I do anything wrong."

"It's fine. You can start and I will advise you. I received a few of them in the past."

"Ok."

He started on her shoulders, the root of the problem. He put one hand on each and massaged them, the same way he could see it done in films and series on TV. Her still naked skin felt warm at his contact and he moved his hands softly, trying not to hurt her.

"You can put more strength in your hands. Don't worry, your mother is tough."

He did as she said and she nodded in appreciation.

"You're doing good, darling. Now you need to find the muscles which are stiff and use your thumbs there to remove the tension."

Following his mother's instructions, he progressively relieved her of her muscular rigidity. From her shoulders, he went to her neck, followed by her back. She smiled contentedly at his work, getting more and more relaxed.

"How is it, Mom?"

"It's very nice. I can feel the tension leaving me. Perhaps I should really ask you to do this more often."

"Of course, you can ask me anytime. Now, where should I massage next?"

"I think you've gone through it all, thank you, darling."

"Eh, really? What about your breasts? Didn't you say they were responsible for your stiffness?"

"Yes, but massaging those wouldn't really help the problem."

She paused for a moment, before grinning mischievously.

"Oh, I see. My baby is still interested in his mother's breasts."

She rotated her chair until they faced each other and opened her arms a bit.

"It's fine darling, you can massage them as much as you want. There is nothing too interesting about a woman's chest, you know."

Benjamin hesitated a second before answering.

"It's true that I am very curious about them."

His mother smiled indulgently and he put his hands on her boobs, feeling her nipples on his palms. He tried to grab them and could feel his fingers sinking in her flesh. It was an amazing sensation of elasticity and he continued playing with them, lifting them to feel their weight, pushing one against the other, or caressing them with his palms. He then focused on her nipples, making circles around them with his fingers, pinching them softly, and eventually just caressing and flicking them, slowly at the start and going faster little by little.

His mother shivered when he started to stimulate her nipples. She let a small sigh of pleasure out, before biting her lips and trying to remain stoic. Benjamin continued working on her breasts for a while, slowly getting excited and having a hard time holding himself back.

"Mom..."

Eventually, he decided to let himself go and went on to suck on her left breast, taking his mother by surprise. She trembled at the feeling of his mouth on her tit and uttered.

"Ben... It's like you're really back to being a baby now...."

She still didn't stop him and Benjamin began to alternate between sucking on her nipple and using his tongue to lick and stimulate it, all the while continuing to use his fingers on her right breast. His mother was panting, now. She raised her left hand and started to caress his hair, as if to soothe a child, while her right hand went to her crotch, rubbing it. Benjamin increased his tongue and fingers' speed and she trembled more and more visibly.

"Baby... My baby is sucking so strongly on mama's breast!"

Finally, she couldn't hold it anymore and her body twitched grandly, exploding in orgasm. She shook for a few seconds before relaxing and slumping on her chair.