Forty Winks, a new lingerie boutique on 56 JFK St. above Shay’s Pub and Wine Bar, opened its doors last Friday, hoping to meet Harvard Square’s demand for lingerie. The store’s owners, Rachel A. Wentworth and Meredith W. Donaldson—both former employees at Harvard Square’s Mint Julep—said Forty Winks differs from other lingerie outlets such as Victoria’s Secret in that its image is not about sex.