Three Ladies, One Bicycle

I came across this scene in my favourite park in Vienna, the Augarten. Did not really know what to make of it, but it looked so iconic that I just could not resist a clandestine snap:

The three young women were resting against the wall - eyes closed, smiling, faces turned up towards the sun. The bicycle seemed to be "with them" rather than belonging to one of them, almost like a fourth person. Intriguing...