"Mom. Tod and I are going to my room to listen to some music, OK?"
"I don't want to listen to it! So keep it down, OK." she replied, watching as her children disappeared up the stairs.
Karen pulled Tod into her room. Her hands were already on his belt as Tod closed the door.
"Jeez, Karen. Slow down." Karen had his jeans down as he spoke.
"I want to see it again!" she answered as his cock sprang forth.
She held it with both hands. Feeling it throb. Her tongue licked his cock until the head touched her mouth.
"Hmmm." as her lips wrapped around it. Tod held her head as Karen opened her mouth to get as much in as she could. Both of her hands holding his cock as her mouth touched her hand.
She slowly let his cock out of her mouth. Gasping for air as she did.
"Take your clothes off." she told him as hers came off. Clothing lay strewn around the room. Finally, Tod lay on her bed. Karen worked at his cock again, sucking and licking it holding his cock against her pussy. Karen rubbed herself with his cock. Tod pulled her a little closer to bring her breasts within reach.
Karen leaned forward, letting her brother suck her nipples.
"Bite them! Squeeze them hard." her voice was getting louder and there was no music to cover it!
"Shhh. Mom will hear us!" he said. His sister was too busy with his cock to listen.
Moving her pussy above his cock, Karen began slowly moving him inside her pussy. Slowly, the head opened her lips and moved inside.
"OH, MY FUCKING GOD... that's big!" she shouted as the first couple of inches entered her.
Tod held her hips. he wanted to thrust, but let his sister dictate the pace.
Her mouth was open as she lowered herself down. She had half of him inside. Tod slowly withdrew, then slowly pushed back in.
"Fuck, that feels so fucking good." she answered to his movement. Her hands now on his chest. He slowly picked up the pace. She gasped as he moved deeper, her nails biting into his chest. Karen had never felt this full. Her head was spinning. She'd lost count of how many times she'd cum, but they were nothing to what was next...
Tod knew his sister was close, so was he. He just didn't want to cum inside her. His sister had other ideas.
"Don't pull out! I want to feel your cum inside me!"
Karen was now driving his cock deeper, moaning loudly as he hit her cervix. Now her head was touching his as he now took control.
"FUCK... FUUUCCCKKK." both of them were sweating. Tod lifted his sister up so he could watch her cumming. His hands slipping on her sweat covered breasts.
Neither one of them heard the bedroom door open?
Helen Spencer stood transfixed in the doorway, watching as her son's enormous cock drove deep inside his sister.
Her hand gripped the door handle tightly.
Tod began to cum. Karen screamed as her orgasm exploded through her. Helen could only watch as her children froze in their moment of orgasm.
Helen closed the bedroom door, leaving her children within. She slowly walked back downstairs. Sitting back on the sofa, she refilled her wineglass and after a few seconds. she drained it. In all her years, she had never imagined a man could have a cock that big. She refilled her glass.
Tod and Karen lay in each other's arms, basking in the afterglow, unaware that their mother had seen them!
Karen lifted her head, looking her brother in the eye.
"Don't think this is a onetime thing! And just in case you're thinking of staying away from home? I know where you live and work?"
"I don't know if that's a good idea! Don't get me wrong! I really liked what we've done, but... what about mom?" Karen rolled her eye's. Climbing off the bed, she headed for her bathroom. Tod laid listening to his sister on the toilet.
He sat on the edge of the bed, waiting to use the bathroom. Karen walked back to him on the bed.
"We should shower!" she said as she fondled his cock. Tod laughed as he stood and went to use the bathroom.
"OK. I'll start the shower now."
after laughing and joking around in the shower, and another suck on her brother's cock, they headed back to her bed, and some much needed sleep.