膝ひざを交まじえる

expression, ichidan verb

sit together in a friendly way; have a heart-to-heart talk

Literally 'to cross knees', used figuratively for sitting close and talking intimately or amicably. Often implies a relaxed, open conversation.

• 久ひさしぶりに旧きゅう友ゆうと膝ひざを交まじえて話はなした。

  I had a heart-to-heart talk with an old friend for the first time in a while.

• 彼かれらは夜よる遅おそくまで膝ひざを交まじえて語かたり合あった。

  They sat together talking intimately until late at night.