Mr. & Mrs. & Mrs.? (Harlequin American Romance, No 681)

Rating:
Summary: Fun!
Review: Casey Lawson had been to dozens of weddings, but she'd never
expected to "speak." Then again, she'd never expected being
stranded in the jungle for three years and declared dead... or
coming back to find her husband had gone from tweedy professor
"Johnathon" to sexy consultant "Jack." And apparently that
wasn't all that had changed...
Jack couldn't believe Casey was back -- and more gorgeous than
ever. He wanted to kiss her senseless and make up for lost
time... but he had one small problem. He had just said "I do"
to another woman!