She doesn't know exactly why she started thinking about it. It just sort of happened.
Like, one morning, she's sitting at their tiny kitchen table in their tiny little apartment, and she suddenly imagines Peter (who is drinking coffee and eating eggs) bent over the table with Harry fucking him up the ass.
And it continued.
It went from Harry to John (poor John, who cried when she called him after the wedding) to Flash (and that was a flashback, pun intended), and it even got to Harry's dad, Otto Octavius...
Yeah, let's see your Spidey sense predict that, tiger.
This Spiderman story was written by Kate Bolin. If you liked it, there's plenty more at http://www.dymphna.net/fanfic/. And you can feedback her at dymphna@dymphna.net.