よがり声ごえ

noun

sexual moan; cries of pleasure

Refers to vocal expressions of pleasure during sexual activity; often used in erotic contexts.

• 隣となりの部屋へやからよがり声ごえが聞きこえてきた。

  I could hear sexual moans coming from the next room.

• 彼かの女じょは恥はずかしそうによがり声ごえを漏もらした。

  She let out a cry of pleasure, looking embarrassed.