So I was watching a Gay Fly Orgy..
“No, no, Dollymopp – you have got it all wrong! As an amateur entomologist, and a specialist in dipterology, I can positively identify them as two boy flies – and they have not moved for ages as one has got his willy stuck in an unmentionable place. Flies mate like so..
The genitalia of male flies is rotated to a varying degree from the position found in other insects. In some flies this is a temporary rotation during mating, but in others, it is a permanent torsion of the organs that occurs during the pupal stage. This torsion may lead to the anus being located below the genitals, or, in the case of 360° torsion, to the sperm duct being wrapped around the gut, despite the external organs being in their usual position. When flies mate, the male initially lies on top of the female, facing in the same direction, but then turns round to face in the opposite direction.
Did the fly on top turn around? No! So my case is proven – they were not a mating pair, and you could have swatted the dirty little buggers without an iota of remorse.”



