To understand the naughty optical illusion here, you have to look at their shadows on the wall rather than watching them.
Two pedestrian (a boy & a girl) doesn't have any idea what's going on.
While the photographer is all set to catch their shadow photo which seems they are romantic couple and in a mood of love making i.e. kissing.
BTW, this kissing optical illusion is popularly known as two people kissing silhouette optical illusion.
Also Watch :Kissing in Public Place (?)
kissing silhouette optical illusion
Two pedestrian (a boy & a girl) doesn't have any idea what's going on.
While the photographer is all set to catch their shadow photo which seems they are romantic couple and in a mood of love making i.e. kissing.
BTW, this kissing optical illusion is popularly known as two people kissing silhouette optical illusion.
