Maria stood before her son's bedroom door. She held her fist up, ready to knock. She paused, a tiny twinge of guilt crossing her mind. For the last two months, she had spent every Sunday morning draining Matthew's balls, helping him to relieve his raging eighteen-year-old's erection so that he could go to Mass with her. At first, handjobs had been enough. But for the last month, it had taken blowjobs to get him to cum. She hoped they would still suffice.
She knocked. "Matthew?"
"C'mon in, Mom!"
Maria swung the door wide. Matthew was lying on his bed, naked, his huge erection pointing at the ceiling, throbbing and bobbing in time with his pulse. He had his hands behind his head, and a lascivious leer on his face. "There's my favorite cocksucker!"
"Matthew! Don't be disrespectful." Maria sat down primly on the bed. She looked at Matthew's cock. It looked bigger than ever. "I suppose you'll need me to suck it again?"
"Yes, please. You know how good you are at it."
Maria knew there was no way around it. If she wanted to get Matthew to Mass to save his soul, she would just have to go through with it again. She grasped the base of his cock with one hand, lowered her face, and sucked the bulbous head into her mouth.
Matthew gasped as the head of his dick was surrounded in warm, velvety wetness. He closed his eyes and felt his mother's tongue licking and slurping around the rim and the slit. He felt her lips gradually slipping further and further down his shaft, gradually taking in his entire length. He felt her throat opening up to receive him, and felt her swallowing motions which drew him in ever deeper
Maria grabbed his tender nutsack and gave it a gentle squeeze. She waited for the inevitable taste of precum to fill her mouth and help lubricate the swallowing action. She waited, but was disappointed. Usually he was precumming within a few minutes of her sucking on him, but none was forthcoming this time. She raised her mouth off his shaft and looked at his face. He opened his eyes.
"Is everything alright, Matthew? Usually you start filling my mouth with precum by this time." She felt a small twinge of panic; the last time this happened, she had needed to graduate from handjobs to blowjobs to get him to cum.
"I don't know, Mom," said Matthew. "It still feels good and everything. You suck a great cock. But somehow it just isn't pushing me up toward the edge. It's just, you know - nice."
Maria's heart was pounding. She had dreaded this day. "Let me try again. I might have a few extra tricks..."
"No, Mom. The time has come. We have to take things up a notch." Maria hung her head. She knew what was coming. "I think it's time you let me fuck you."
Maria's head was spinning. This couldn't be happening. Giving her son a handjob was probably a sin. And giving him a blowjob was almost certainly a sin. But they weren't really sex. Not really. They were just, well, therapy! Yeah, that was it. But actual sex... this would most definitely be a sin. She wasn't sure she could go through with it. She looked at him with a blank stare on her face.
"Mom? Mom?! Are you seriously thinking of not doing this? You know what will happen, right? I won't be able to go to Mass. I won't be able to save my soul. I'll be damned to Hell, forever! Demons and pitchforks and brimstone, and being flayed alive, for all eternity! All because you wouldn't have sex with me? Is that what you want? Is it?"
The thought of her poor little angel, turning on a spit in the pits of Hell, slowly roasting over an eternal fire while demons poked him with pitchforks, was too much for Maria. She couldn't allow that. Not even if she had to commit the worst sin in the universe!
"Of course not, Matthew. Of course I'll let you fuck me. After all, you have to go to Mass. You just have to."
"That's more like it! Now, take those clothes off and come join me in bed."
Maria stood up. She kicked off her shoes. She unbuttoned her blouse and shrugged it off. Matthew's eyes were staring and his grin was bigger than ever. She reached behind her back and unclasped her bra. She hunched her shoulders forward and it fell to the floor at her feet. Matthew's eyes bugged out even further. She unzipped her skirt, let it fall, and stepped out of it. Matthew looked like he was about to start drooling.
She was standing in front of him in her panties. She hadn't put her stockings on yet. She turned around, facing away from the bed, and slid the panties down her legs. Matthew stared, transfixed, at her naked ass in front of his face, nice and round. When his mother turned back around to face him, he was mesmerized by the triangle of hair around her pussy. She was middle aged and looked it, but she was his mother, and he thought she was beautiful.
"Mom, you are beautiful!" Maria blushed pink. "I can't wait to fuck you!" Maria blushed a deep crimson.
"Don't talk to your mother like that!" she said crossly. But involuntarily, she felt a tingling in her crotch. And a flock of butterflies in her stomach. She wasn't sure if they were out of fear, or anticipation.
"C'mere, Mom," Matthew held out his hand. Maria took it, and let him pull her down to the bed. She laid herself down beside him, belly to belly. "You are so beautiful. I am going to fuck you really good, Mom. I am going to fuck your pussy really, really good."