What did IU get Lee Hyori from her trip to the United States?

On this week's episode of 'Hyori's Bed & Breakfast', IU returned from her trip to the United States and she brought an interesting gift for Lee Hyori.

As she made her trip back to the house, she came back with a handful of gifts from her trip that looked too heavy for her. She immediately presented Lee Hyori with her gift while giggling. As Lee Hyori started opening her gift, IU said shyly, "Oh can you open it now?" Lee Hyori said, "What is this? I think you can see through this," to reveal an underwear which caused both IU and Lee Hyori to laugh.

Their friendship is adorable!