Who knew that having a slice could help you get a piece?

Believe it or not, scientists have discovered that eating watermelon may have the same effects as taking Viagra.

Watermelon contains an ingredient called citrulline that can trigger production of a compound that helps relax the body's blood vessels, similar to what happens when a man takes Viagra, say scientists in Texas, one of the United States' top producers of the seedless variety.

Found in the flesh and rind of watermelons, citrulline reacts with the body's enzymes when consumed in large quantities and is changed into arginine, an amino acid that benefits the heart and the circulatory and immune systems.

"Arginine boosts nitric oxide, which relaxes blood vessels, the same basic effect that Viagra has, to treat erectile dysfunction and maybe even prevent it," said Bhimu Patil, a researcher and director of Texas A&M's Fruit and Vegetable Improvement Center.

"Watermelon may not be as organ-specific as Viagra, but it's a great way to relax blood vessels without any drug side effects."

Soaking the watermelon slices in Malibu rum may not do anything for your erectile function, but it may make you look more attractive to potential sex partners.