grovel at (someone's) feet

Translations
ползать у (чьих-то) ног
He would never grovel at her feet, no matter the situation.
Он никогда не будет ползать у её ног, независимо от ситуации.
Definitions
To act in a very humble or submissive manner toward someone, often to gain favor, forgiveness, or approval; to show excessive deference or admiration.