I knew the reason gay men exist and have existed through history is because modern women publish slash fanfiction on the internet!
I think I've overdone the Dr Who binge with the small boy, because I'm now envisaging some sort of temporal paradox where 21st C women writing slash retrospectively turns men gay, thus destroying the human race before the internet is invented, at which point no-one's there to write the slash fiction, so...
Time for bed I think. Or a stiff gin.