“Jesus Christ, Billy, how much…?” Her voice cut off as yet another jet splattered on her lips. Her tongue lapped at it instinctively. It didn’t taste as bad as she expected, but she wasn’t thrilled about the texture.
Recovering from her initial shock, Jenny took his still leaking head between her lips and continued to suck her brother dry, now more easily able to swallow the remaining, less powerful spurts.
Releasing him with a final wet, sloppy plop, Jenny grinned up at him proudly as she wiped his spunk from her lips and chin.
Billy’s face was bright red as he struggled to catch his breath; he’d had to clamp a hand over his mouth to stifle his howls, and yet he still worried the entire neighborhood had heard him.
Turns out, only one other person had.
“Billy? Jenny???”
The siblings turned as one to spy their mother, standing in the bedroom doorway, hands on her hips, her face incredulous.
“Mom???” Billy stumbled back, away from his naked, cum covered sister, only barely managing to keep his feet as he struggled to adjust his shorts. “I’m so sorry! I didn’t mean for this to happen! Just let me…”
“Save it, young man,” his mother cut him off sternly.
Turning to her daughter, Madison glared down at her. “And you! What kind of botched ending was that? You have to relax your throat, sweetie. Close off your trachea, get it to flow down the esophagus, otherwise you could choke to death!”
Jenny and Billy looked at each other with confusion, then turned their faces back towards their mother. “Um… what???”
Stepping fully into the room, Madison closed the door behind her.
Sighing, she slipped off her bathrobe, revealing her fully nude body. “Guess I gotta teach you two how to do EVERYTHING.”END (For now…?)