Nancy is 3 Months Pregnant-
"Mom! Have you seen my curling iron?" Rachel yelled into her mother's room.
"I want to curl my hair before my date with Robbie tonight but I can't find it."
Rachel could hear the shower running but her mother failed to reply.
"Ummm, hello? Anybody in there?" Rachel knocked and pressed her ear against the bathroom door.
Inside mother and son froze. Nancy and Sam both heard the knock but could not make out who it was. Sam was sitting on the tile bench built into Nancy's shower. The 44 year old mother of 4 was sitting on her son's lap, his cock deep inside her pregnant body. Years ago, Jim, Nancy's late husband, had requested the seat be built into the shower when he had the bathroom remodeled. He thought it would come in handy as he got older. However, instead of serving as a safe place for an aging man to relax, the bench had now become a safe place for mother and son to fuck regularly.
Rachel knocked again.
Her mother was now 3 months pregnant and with her Father gone she had become paranoid about her mother's well being. The thought of her mother fainting in the shower flashed through her head. Franticallty she ran to her mother's closet and pulled out a coat hanger to unlock the door.
Nancy was about to reply when the door handle jiggled and then swung open. Hot steam rolled out of the bathroom. Nancy's gasped in surprise. Her shower door was not glazed but instead completely transparent. Surely Rachel would see that Sam was in there with her.
"Rachel! Don't come in, I'm showering!" Nancy screamed.
"Sorry mom, I was calling you but you didn't answer."
Mother and daughter looked at each other's reflection via the foggy bathroom mirror. Nancy prayed that Rachel would not turn to look at her directly. The mirror's height allowed only Nancy's upper torso to show. The steam from the hot water helped cover some of the mother's nakedness but Rachel could still see her mother's voluptuous breasts as the water ran down them. What Rachel couldn't see, was her younger brother helplessly trying to hide behind his mother's curvy body.
"Have you seen my curling iron? I thought I saw it in here?" Rachel asked.
Nancy had seen it in her bathroom. In fact she knew exactly where it was. This information of course she could not share since it would require Rachel to walk into the bathroom to look in one of the drawers.
"I think I saw in the downstairs bathroom. I believe it's in one of the drawers honey."
"I already checked there," Rachel replied impatiently.
Unbelievably, Nancy felt Sam's hands grab her hips and lift her up slightly. He was trying to fuck her even now. Nancy quickly reprimanded him by digging her nails into one of his legs.
"I'm... I'm pretty sure it's there honey. Check again."
Rachel gave an exasperated sigh then spun on her heel and hurried out the bathroom.
The door wasn't even closed before Nancy began bouncing her meaty ass back on Sam's lap.
"That was close Sam. What the heck were you thinking humping me while she was still in here?" She asked as she placed her hands on Sam's knees to better raise and lower herself on Sam's thick baby maker.
"I just couldn't help it mom. You just felt so damn GOOD!" Sam gritted his teeth and pushed his hips upwards, fully penetrating his mother.
Smack! Smack! Smack! Smack! Smack!
Sam continued fucking his mother. The wet smacking sounds of their wet bodies echoed in the shower. Sam reached around his mother and played with her swollen clit and rubbed her growing baby bump. At the same time he continued guiding his mother up and down his throbbing pole. Sam watched as his mother's plump bottom squished against him every time she settled her entire weight onto him. Although his cock was thick and long it was no match for Nancy's plump bottom. Her pussy swallowed him whole, over and over again. After a few minutes, Sam asked for respite.
"Mom, can we switch positions? My legs are falling asleep."
Without a word, Nancy's stood up, freeing Sam's thick cock. It smacked against his abs as the tip slid out of her well fucked pussy. Sam stood up and stretched his legs. Nancy's couldn't help but ogle her son, as water dripped his entire body. His angry cock, with it's bulbous head, heaved under the steady stream water. She cooed when she saw his heavy balls move on their own accord. She quickly offered herself by bending over on the tile bench. Sam stepped behind her with his right hand wrapped on his cock. With his free hand he pulled her butt cheeks apart and slowly rubbed his swollen head against her puffy lips. He slowly parted her open and soon he was balls deep inside. Sam fucked his mother at a steady pace. Nancy's ass rippled underneath her son until he decided to grab her asscheeks with both hands. Water ran down her swaying, swollen tits and growing belly. Sam was still gripping onto ample, handfuls of his mother's ass, when he started spurting inside her. Only after he completely emptied his load did he finally pull out. Nancy felt thick gobs of cum ooze out of her. Nancy was sure that had she not already been impregnated by him, she would've been then.
The shower that usually took Nancy only a few minutes had now gone for almost half an hour. They were about done drying themselves when suddenly they heard Rachel's voice again.
"MOM! It's not down there! Are you sure it's not in there?"
Nancy's quickly reach into the drawer where the curler had been all along. Sam on the other hand, hid behind the bathroom door. Rachel knocked once but didn't wait to be let in. Luckily, Nancy was able to meet her at the doorstep.
"Sorry honey, I guess it was in here all along," Nancy said as she stuck her head between the partially opened door.
"I told you," Rachel replied exasperated but happy to finally have the curling iron.
"So where is Robbie taking you tonight?" Rachel asked, trying to sound normal.
"He said he was taking me somewhere nice for dinner and maybe watch a movie later,"
"Well that sounds like fun," Nancy replied.
Rachel had started dating Robbie just a few weeks ago but Nancy had already started to dislike him. The first time he came over to the house, he had spent most of his time playing with his phone instead of getting to know the family. Nevertheless, Nancy was glad that Rachel had found someone new to spend time with and she hoped that maybe this time Rachel had actually met a decent boy.
Sam listened as his mother and sister talked about the upcoming date. He tried to remain still but after a while he noticed how his mother was leaning out the door and decided to seize the opportunity to feel her up one last time.
"Yeah should be nice. Hopefully this time he doesn't think about bringing his friends along. That was really weird last time." Rachel continued.
"I still can't believe he d...did... that," Nancy stammered as she felt Sam reach underneath her towel to grope her fat bottom.