Does saying "my father" to someone who is not one's biological father affect entry into Paradise, and is it permissible to inform people of the truth while continuing to address him as "father"?

It is permissible for a person to address someone other than their biological father as "my father" or "my parent" out of respect and affection, as long as it is not intended to disavow their true lineage. This has been reported from the Prophet, peace and blessings be upon him, in his sayings: "O my little father (or similar affectionate address), do not stone the Jamra until the sun rises," and "O my son." The warning mentioned regarding claiming a father other than one's own is specific to those who intend to disavow their true lineage. It is necessary to inform people that the person is a stepfather and not a father to avoid confusion.