I need a photo edited in photo shop for a trash the dress photo album.

I have a photo from my wedding. We are making a trash the dress photo album.. We would like to have a personal photo of us with the grooms feet on fire and going up his slacks and adding flames to the train of the wedding photo. This is a photo of us from behind so it isn't disgusting. It is us walking hand in hand down a side walk but I want fire on the sidewalk behind us and touching the bottom portion of us. Examples attached...but we don't want to look on fire. Just fire creeping up on us a bit.