Not again, you randy buttlerfly!

According to a LiveScience.com article, a bacterial infection is causing female butterflies to become more promiscuous and resulting in "sexual exhaustion" in male butterflies.

In a related report, several male scientists are trying to discover how to adapt the bacteria to human subjects.

Of course, this research will immediately come to a stop when the scientists are reminded that the bacteria also causes male butterflys to spontaneously change into female butterflies.

(Heard in the lab: "Blimey, Bob just grew ...erm... "wings.")