Rumors that the two were an item surfaced during last year's World Cup in South Africa. Shakira recorded the tournament's official song, "Waka Waka," and Pique was one of several players who appeared in the video.
At the time, Shakira denied having a relationship with Pique, 10 years her junior.
The photos could be seen Monday on a Facebook page dedicated to Shakira that lets any user post images or comments.
The 34-year-old Colombian announced last month that she and Antonio de la Rua, son of former Argentine President Fernando de la Rua, had ended their 11-year relationship.