Malec, Interrupted (ficlet)
"Magnus, stop laughing," Alec hissed, a hand pressed to his eyes as if to shield himself from the embarrassment that had just occurred. This wasn't the first time that someone had interrupted them during, ahem, an intimate situation but it was definitely the worst.
"It was my mom!" Alec groaned, his mind replaying the moment over and over again in his head.
"Your pants. Off. Me, uh, she saw -- things," Alec finished lamely with a flap of his hands.
Magnus attempted to stifle his amused laughter and stroked a teasing finger over Alec’s flushed cheekbones. "Darling, there's no need to be embarrassed. You were doing some of your best work! If anything, Maryse should be proud of your attention to detail."
"Oh God."
The pained groan sent another gale of laughter through Magnus. You didn't live for centuries without learning how to handle an interrupted blowjob with grace. Even if said interrupter was your boyfriend's mother.
After another minute, Alec peeked out from behind his fingers, the blush on his cheeks still firmly in tact but his lips lifted in a smirk. "It was good work, wasn't it?"
"The very best," Magnus purred sliding into Alec's lap. "Care to remind me just how good?"