For over a week now, local residents and tourists have been shocked by the emergence of sexually explicit graffiti on the Belgian capital Brussels' facades.

Since the beginning of the week, gigantic drawings of penises and sex scenes have appeared on walls of the capital, within public view.

An explicit image of a woman's vagina appeared on the Brussels skyline on Rue des Poissonniers, in the stylish Dansaert neighbourhood.

In the centrally located Place Stéphanie, a graffiti of a woman masturbating also appeared earlier this week.

The latest licentious street art - a gigantic penis painted in black and white - appeared in the business district of Saint Gilles in front of a Catholic institute. Saint Gilles is an extremely busy area, and the drawing has already sparked controversy among local residents.

In the Parliament of the French-speaking Community known as Federation Wallonia-Brussels, an MP Vincent Henderick described the street art as "inappropriate".

"It does not belong at the Barrière de Saint-Gilles," he said, according to the RTBF.

While the author behind the artwork remains unknown, art lovers linked the explicit drawings to one of Brussels' prominent graffiti artists, Vincent Glowinski, aka Bonom.

However, when asked to comment, the French artist denied being behind the artwork. "It is not me of course and I do not want to be involved in this story," he told RTBF.