The star, who has been dating the actor a little less than a year, last month denied reports hunk had proposed to him, with his spokesman saying there was "no truth" ' history.
But the 23-year-old was seen with his mother and sister Monique Lhuillier to the shop last week in Los Angeles, where they "spent some time" displaying a variety of dresses, according to the New York Post's Page Six.
Reynolds has already been committed for Canadian singer Alanis Morissette, but he called their engagement in February of last year.
A representative of the actress was not available as WENN went to press.
