The rumours began to swirl after the couple apparently obtained a marriage licence from Tangipahoa Parish Clerk of Courts in Louisiana earlier this month, reported E! News.
The couple, who have been engaged for a year, filed for the document on March 5. They have just 30 days from the date of issuance to get hitched before they have to apply for a new licence.
Lynn, 22, had announced her engagement on Twitter by posting a picture of a stunning diamond sparkler on her ring finger.