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Lauren announced the news on Saturday via Instagram alongside an image of the pair sharing a kiss. She captioned the photo "Being yours forever has a nice 'RING' to it. #HoppilyEverHopkins @_alex_hopkins WE ARE ENGAGED. EEEK."
Lauren and Alex are both 23-years-old and have been dating since 2012.
Earlier this year, Lauren shared that she wasn't whether an engagement was in their future, but they had discussed marriage and taking next steps in their relationship.