Alien babies.

I've never been a baby person

Babies are quite weird

and worse they have these fans

That is something that is feared.

When an ultrasound is shown

When friends meet for a chat

I get into heaps of trouble 

Saying 'What the hell is that?'

My friends, they get all gooey

But I tend to cause some friction

Suggesting that the little blob

something found in science fiction.