his cousin / her cousin
What is his cousin’s name?
Tom starà con sua cugina per Natale.
Tom is going to stay with his cousin for Christmas.
Sua cugina vive in America.
His cousin lives in America.
Sua cugina, di cui mi sono scordata il nome, era un'infermiera.
Your cousin, whose name I’ve forgotten, was a nurse.
È sua cugina, non sua sorella.
She’s his cousin, not his sister.
Lui è andato a stare da sua cugina.
He went to stay with his cousin.
He kissed his cousin.
His cousin is my wife.
He kissed his cousin.