The sexual relationship between Sue and Tommy continued and even accelerated over the next several months. Tommy was almost insatiable. It was as if he were trying to make up for the high school years. The two of them had had sex almost everywhere possible, and in every position. However, there was one thing that they hadn't done, but Tommy was afraid to ask.
On Tommy's nineteenth birthday, Sue wanted to do something special for him. She prepared his favorite meal and had them both dress for dinner. Tommy complained about having to put on a suit but as usual did what his mother asked.
When dinner was over and the dishes left on the table, Sue and Tommy went into the living room. Sue put on some slow music and took Tommy into her arms.
As they danced, Tommy caressed his mother's buttocks through her satin dress. Tommy loved the way she looked in this dress. It emphasized her ass to perfection. It was skin tight and short, with a split all the way up to her hip. He knew that she wasn't wearing panties because they would be visible. Besides, she rarely wore underwear anymore. It only got in the way of their frequent bouts of sex.
Sue kissed her son's neck and let him caress her buttocks. Then she whispered into his ear, "You like my ass don't you?"
"God yes," he responded, squeezing her firm but soft cheeks for emphasis.
"Do you want it?"
Tommy pulled back from his mother with a questioning look on his face. "What?" He could see that his mother's eyes were burning with lust.
"I'm a virgin back there."
It took Tommy a second to realize what she was saying. "You mean... you mean fuck you there?" he asked incredulously.
"Yes! I want to give my ass to you. It's my special present for your birthday. Of course if you don't want to..."
"No... I mean yes... oh God Mom, are you serious?"
Sue kissed Tommy's lips then took his hand. She led him up the stairs and into their bedroom. She let Tommy sit on the bed then turned around for him to unzip her dress.
Tommy's hands were shaking as he slowly lowered the zipper. He could see his mother's smooth back as the dress opened. The zipper went all the way to the top of her buttocks.
Sue shrugged the dress off, letting it fall to her feet, leaving her naked but for a pair of high heels and silk thigh high nylons. She stood with her back to him, letting him see her naked form. Then she looked over her shoulder and smiled, saying, "Do you want to fuck me in the ass?" She leaned slightly forward and reached back, spreading her cheeks.
"Oh God," was all Tommy could say as he saw his mother spread her buttocks obscenely in front of him.
"Get your clothes off," she said and turned around to help him strip. Soon, they were lying on the bed naked and in an embrace.
Sue turned over on her back and grabbed a couple of pillows, putting them under her buttocks. When she was situated on her back with her thighs spread, she motioned to Tommy to get between her legs.
Tommy hurried to comply. When he was kneeling between her raised thighs she looked into his eyes and said, "Put your cock in my pussy first and get it wet. Then fuck my ass."
Tommy almost climaxed right then. With shaking hands, he fitted his penis between his mother's wet lips. A moan escaped both of them as he pushed into her. Her tight hole felt so good that he couldn't imagine anything better.
After Tommy had thrust into her a few times, Sue pushed him back. Then she placed her legs on his shoulders and lifted up until her rear hole was exposed. Her hands were trembling as she reached down and pulled her cheeks apart. "Put it in," she hissed excitedly.
Tommy's aimed the large head of his penis at her tiny brown hole. He couldn't imagine how it could fit into such a small place. Slowly he pushed forward. He heard his mother groan and he stopped to look at her face.
Her eyes were closed tight but she said, "Go ahead."
With his hands on her thighs, Tommy pulled her toward him and pushed at the same time. "Ahhhh!" he groaned as the head of his penis slipped inside his mother's tight little hole. The ring snapped shut, squeezing the head in a vise.
"Wait, wait," Sue breathed, letting her rear passage get used to the large head. After a few excruciating seconds for Tommy, she said, "Okay, fuck me."
Tommy pushed again and watched in amazement as his rod disappeared into his mother's body. Inch by inch it moved until his entire penis was surrounded by her warm insides. The feeling was incredible. It was soft, hot and tight like her vagina but different. It squeezed every inch of his shaft, from the base to the tip.
"Fuck meeeee!" Sue pleaded.
Almost reluctantly, Tommy began to move, pulling his penis almost all the way out before pushing back in. "Oh God," he moaned as her smooth hole sucked him inside. Tommy began to move faster.
"That's it, that's it, fuck me lover. Fuck your mother's asssssss!" Sue screamed as she built toward a climax. She reached down and began to rub her clit. "Oh God baby, I'm going to cum. Oh yes, oh yes," she hissed as her hole tightened around Tommy's shaft.
"Oh Jesus Mom," Tommy moaned as he felt her body began to convulse. "I'm going to cum too," he moaned. He pushed into her hole as deeply as possible and froze.
Sue felt his penis quiver inside her ass. She was amazed that she could actually feel him begin to cum. That intensified her building climax.
Both of them screamed in pleasure as Tommy filled his mother's rear hole with his seed.