They were long past being shy around the house. Suzie walked around in her panties occasionally going braless. Tom wore his Speedo or briefs. Tom's briefs were cotton. The kind that basketball star advertised.
Suzie told Tom they had to do something about those ugly cotton briefs. Getting on the computer they signed on to Amazon. Tom said he didn't like boxers. They let his balls hang loose. And when his balls were dangling they chafed.
Looking through the selection of briefs they decided on low-rise briefs made of "micro-modal" material. They would be soft and comfortable with a contoured pouch to hold his cock and balls in place. And they ordered some bikini briefs made of nylon and lycra so Tom could show off his cock while walking around the house. They also ordered a thong for him. He didn't think he would be wearing it out and about, but it would be great around the pool.
Tom stayed at the computer a bit longer to order a couple more things. For grins he got one of those novelty briefs that has a cock sheath sticking out the front.
And he went searching for a new vibrator for his mother. Her egg vibrator was good for her vagina and the regular vibrator was good for all sorts of things, but he wanted something a little different.
He found the perfect vibrator. It was a "We-Vibe". It was in the shape of a "C" or more like a lobster claw with one end that went in the vagina and the other end resting on the clitoris. Best of all it could be controlled with a smart phone.
In a couple days the package arrived while Suzie was out shopping. Tom opened it dug out the novelty briefs. Putting them on he could tell it would be nearly impossible to put them on if he was already hard. He had just pulled them on and slid his cock into the sheath when his mother came in with the groceries.
His mother looked at Tom's cock in its new sheath. It looked funny to her but that didn't stop her from grabbing his cock and helping it fill out the sheath. The harder Tom got the tighter the sheath was. The tip of his penis was straining to break out the end. It felt tighter than a condom.
Suzie had dinner plans with her sister but she decided she had time for a fuck. She found the massage oil and poured some on her son's erection and rubbed it in making sure it was good and oily. She didn't want the hard sheath being stuffed up her pussy while it was still dry.
Taking her shorts and panties off she leaned over the kitchen table with her ass facing Tom. Tom didn't need to be told anything. He put his hard cock up to his mother's pussy from behind and slid it in. Just a little bit at first to let her get used to the sheath material covering his dick. It didn't take long before he was jamming his entire cock into her.
As Suzie was cumming her hips started bucking again and her ass slammed back into Tom as he was ramming his cock forward. It only made her orgasm more intense. Tom shoved his dick in one more time and then held it there while he unloaded his cum deep into his mother's pussy.
Suzie felt like she was in seventh heaven. That was one of the best fucks she had ever experienced. She would have to make her son wear that funny bikini brief again.
Looking at the clock Suzie realized she had to hurry if she was going to meet her sister on time. She jumped in the shower for a quick wash. As she was getting dressed she decided to use her vibrator egg. She pushed the egg up her vagina and pulled up her panties.