The blonde beauty dropped something cryptic on social media that caused fans to wonder!
Stefani and Shelton began their vacation in Florida on Friday and posted photos from their trip.
In one Instagram shot, Stefani apparently gets a kiss from Shelton's sister.
In a head scratcher, the No Doubt singer captioned the picture, "got lucky #sisternlaw."
The moniker caused shock because Stefani and Shelton haven't yet married!
During their vacation this weekend, Stefani, 48, and Shelton, 42, looked closer than ever taking her kids out for a boat ride on Saturday.
She wore a flowing blouse and tiny Daisy Duke denim shorts and Shelton sported his usual casual look.
The country star has bonded with Stefani's three sons.
In one social media photo Shelton showed Apollo, 4, how to pilot the boat!
For another adorable shot, Shelton wrote as a caption, "Double cute," as he points to Stefani's boy Kingston, 12.
As RadarOnline.com has reported, a source said Shelton recently converted to Catholicism to marry devoutly religious Stefani.
Stefani danced to "Hollaback Girl" at a friend's wedding last month.
Now will her own—to the love of her life Shelton —be far behind?!
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