There is a stain that has just appeared on one of the seats of my cream leather sofa - it looks almost like it could be lily pollen but my initial thought is that someone has taken a yellow felt tip and has scribbled on the seat. As we don't have kids and the cats aren't that clever I can't see how this would be possible!
Have tried washing up liquid and a damp cloth but it's not budging.
Any ideas? It's in a really obvious place and I can't even cover it with a cushion....