(CNN) Cold feet before a wedding, very common. A snake chomping on the groom's ankle? Not so much.

Johnny Benson and his new wife, Laura, were strolling hand in hand through a lush green field in Fort Collins, Colorado on Monday. They said "I do" less than two hours before at a church.

As the sun began to set, wedding photographer Madeleine Wilbur captured their intimate first moments together as newlyweds.

Then their photoshoot was photobombed.

A sneaky rattlesnake slithered up to Johnny and gave him an unwanted wedding present -- a chomp on his ankle.

Read More