“It’s getting looser, Mom. Can I put my dick in there now?” he asked as he twisted both wrists around so his fingers were nails together instead of side by side.
“Leave your fingers there and push your cock in my cunt first to get it wet. And Billy, I’ve never tried this before. Take it easy.”
Billy moved his knees up close behind her and slipped his hard cock into her wet cunt. He could feel the slick goo clinging to his prick as he slipped it out. Pulling his fingers apart as hard as he could he tried to stretch her asshole one last time before pulling them out and trying to get his cock up in their place.
He managed to slip his foreskin down over his cock head before puffing his fingers out of his mother’s ass. And then he pulled them out, grabbed his cock and pushed it up against her asshole before it closed completely. He pushed the head into the dark opening and felt his foreskin slip back as he pushed. The head of his cock went in but that was all.
“Hey! Oh, wow! Take it easy, son!” Betty went forward a few inches but quickly pushed back to him. “See if it’ll go now, but slowly.”
Billy pushed but the little muscular ring held him back. He caught his mother’s hipbones and bent over her back, bunching his cock against the straining sphincter. Slowly, he felt it opening up, slipping further up on the head of his cock. With a hard lunge he drove his cock through the restriction and on up into her bowel. Betty jumped forward and Billy fell on top of her.
“Oh, God! Oh, shit! You’ve ripped me open! You’ve torn my asshole bigger! Oh, hell! Pull it out!” cried Betty.
Billy held his ground. He lay on top of her, his thighs between hers, until she calmed down and started working the muscles in her ass.
“Oh, it feels better now. But don’t you move! Let me get used to it first.” Despite her protests and crying there were no tears in her eyes. She only cried because it hurt when virgin territory was invaded.
Billy started working his hips back and forth, trying to move his cock in and out of her rectum but he just seemed to ride on her hips. He didn’t have the angle to work at it.
“Wait. Let me get back up on my knees,” said Betty as she tried to kneel.
Billy worked with her, lifting his hips and going back as she got back on her knees and put her head and breast down on the bed. Once again he caught her hipbones and pulled her back against his cock as he drove forward. Only a fraction of an inch went in before friction stopped him completely.
“Oh, shit. It’s all dry again. Billy, you’ll have to put your cock back in my cunt and get it slicked up again. We wasted too much time and let it dry.”
He pulled his hips back and his cock popped from her asshole. Quickly he rammed it back into her cunt and went up to her asshole again, working his foreskin in with his fingers before pushing with his hips. He felt her sphincter slip up over his cock head and slither up his shaft as his cock forced its way in to the hilt, pushing its way through her virgin hole.