Thanks to phlog that! for the photo and the claim that it shows "two starfish making love in the sand at Morro Bay, California."
Hmmm. Nice story, but according to Wikipedia (which is never wrong), starfish don't do it like that. Instead, "fertilization takes place externally, both male and female releasing their gametes into the environment."
Being a romantic at heart, I prefer to believe the phlog that! version. Did someone say, "Caption Contest"?