his/her chest
Elle a posé sa tête sur sa poitrine.
She laid her head on his chest.
Il a déchiré sa chemise et il y avait Staline sur sa poitrine.
He tore his shirt and there was Stalin on his chest.
— Bouge pas, meurs, ressuscite (1990)
Elle posa sa tête sur sa poitrine.
She laid her head on his chest.
Tu voulais juste toucher sa poitrine.
You just wanted to touch her chest.
— Memories of Murder (2003)
Tom croisa les bras sur sa poitrine.
Tom crossed his arms over his chest.
Her chest.