Use her panties

You reached over instead, picking her discarded panties from the floor. When she saw them in your hand she looked scandalized that you were even touching her underwear.

“Use this,” you said, placing it onto her cum coated palm before she could stop you. She pulled another face, her unmentionables now soiled with her own son’s semen… but once it was done she was resigned to it and began to clean her fingers with off. “Mop me up too,” you said, subtly thrusting your crotch in your mother’s direction. She had actually managed to ‘catch’ most of your jizz on her hand, but there was still a bit of it to clean off your cock and balls, along with the drying, sticky spit of hers. She folded her underwear over, looking for a clean side, then proceeded to swipe at your flagging erection. The feel of her smooth but now slightly damp panties was spine tingling, and she couldn’t not use both hands to handle your manhood to properly get to all of the nooks and crannies and wrinkles and sweep up your cum and her spit.

She managed a decent job of it all. Her hand, your crotch, and miraculously the prayer room, appeared spotless. Then she looked at the balled up, cum soaked rag in her hand, not knowing what she should do with it.

You stood and pulled up your pants on the way, your mother looking up at you still at a bit of a loss. “You should put those back on,” you said, and she looked to you and to her dirtied underwear then back to you. “Well those have been properly cleansed now,” you theorized. “It’s almost as if it was touched by Allah himself.” Except it was soaked in her son’s spunk. But… the logic checked out if your personalised Quran passages were interpreted correctly, and at this moment your mother couldn’t come up with a single reason not to put her undies back on. So she had to stand, had to gingerly unfold her sticky underpants then step through the leg holes, and she very awkwardly pulled them up. She managed to hide most of the process under the dress, but when she finally slid them into place you saw her close her eyes and shudder, probably to the now damp coolness against her warm bare skin. “Nice,” you nodded. “I’m going to go study. I’ll see you at lunch.”

Your mother nodded as well and stared after you leaving.