They've been together only four months, but things are definitely getting serious for Blake Shelton and Gwen Stefani's romance-and sources now say they are definitely headed down the aisle in the future.  

Gwen Stefani Jokes About Blake Shelton 'Popping The Question'

Sources have told People Magazine that the couple, who became red-carpet official over the weekend by attending the Vanity Fair Oscar party together, definitely have a long-term future together, meaning they may very possibly be considering marriage.  

"They seem too perfect for each other for it to just be fluke. For now, they seem happy with their relationship, but Blake is old-fashioned and a future engagement seems very possible," a source said. 

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In addition the fact that they both went through their respective divorces from Gavin Rossdale and Miranda Lambert together-and Shelton's willingness to accept Stefani's sons, Kingston, 9, Zuma, 7, and Apollo, 2, are also part of what makes them work so well.  

"Gwen thinks of Blake as the biggest blessing," the source said, "They share both good life experience, like work, and the bad ones, like their divorces." 

The source also said that after Stefani's split, she was "questioning if she would ever meet someone that would accept her boys," which Shelton did without any hesitation.  

The couple has already made themselves known on the wedding circuit as well. They attended Shelton's hairdresser's wedding in January, as well as former Voice contestant Raelynn's wedding this weekend.  

Tags: Blake Shelton Gwen Stefani