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A representative for Whitney Houston's daughter Bobbi Kristina Brown has dismissed reports suggesting the 20-year-old has quietly wed her fiance Nick Gordon.

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Brown, who announced her engagement in July, sparked speculation the couple had secretly tied the knot after she described Gordon as her "hubby" in a Twitter post on Wednesday.

The suggestive post read: "Well off to sleep with my hubby @nickdgordon prayers before bedtime. godbless you all, till next time chaps."

However, a spokesperson for Houston's only child with R&B veteran Bobby Brown has dismissed the marriage speculation to Eonline.

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The rumors emerged one month after Gordon gifted his bride-to-be with a new diamond ring to replace her old sparkler.

Showing off the impressive piece of jewelery with a photo on her Facebook page, she simply wrote, "Upgrade."

Brown grew close to Gordon, who was informally adopted by Houston when her daughter was 12, following the superstar's death last year.

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