"Sherlock, you are not going to fertilise anything," says John forcefully. They are standing around in the waiting room of the artificial insemination clinic, waiting for someone.
"Why not?" Sherlock asks.
John shuffles, "Do you really want a tiny assassin Sherlock running around?"
"Yes," says Sherlock. John gives him a look, and Sherlock raises his eyebrows in a way of saying, 'what?'.
"Really?" John sighs, "and also, I'm the one who used to date Mary."
"So?" Sherlock says, "come on, you can be the biological father of our next kid."
"Our next kid?" John looks at Sherlock, "Alright, fine. You can fertilise Mary's egg this time, but don't go blaming me when they turn out to be a wanted murderer one day."
"Wouldn't that be interesting?" Sherlock smiles. John rolls his eyes. He's about to protest, but gives up before even opening his mouth.
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Sherlock Watson
FanfictionSherlock and John get their first case in months, but the problem is... they have to take their kids with them.
