Story about hippocrene?

You are probably talking about Hesiod, Hugo.

But still, there was no romance. A spring is a spring, even if they were sometimes personified.

It was believed that this legendary spring was a source of poetic inspiration, and it is worth mentioning that this body of water also inspired its own myth. For in mythology, the Hippocrene spring was created when the winged horse Pegasus aimed his hoof at a rock, striking it with such force that the spring burst from the spot.

http://www.loggia.com/myth/helicon.html

In Greek mythology, Hippocrene was the name of a fountain on Mt. Helicon. It was sacred to the Muses and was formed by the hooves of Pegasus. Its name literally translates to 'Horse's Fountain' and the water was supposed to bring forth poetic inspiration when imbibed.

The spring is associated with Pegasos since Pegasos is connected with the word for "spring, well", pēgē. So everywhere the winged horse struck his hoof to the earth, an inspiring spring burst forth.