Dear Sir,
I am Yusuf, 28 years old.
There is a nice family in the neighborhood that I visit from a day to another.
I went with the grandma and her sister to the airport and in the airport the grandma kissed me as her son.
I don't know if this kiss is OK because she is in the age of my mother or this kiss is still forbidden.
And what should I do if it was forbidden" haram".
Yours Sincerely,
Yusuf

All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.

This woman kissing you is something forbidden because it is not permissible for a man to shake hands with a non-Mahram woman even if she is an old woman, according to the preponderant opinion of the scholars .

As regards kissing, then this is even more forbidden. The Prophet said: "If one of you were to be stabbed in the head with an iron needle, it would be better for him than touching a woman whom he is not permitted to touch." [At-Tabaraani and Al-Bayhaqi]

Therefore, you should not have let her kiss you and you are obligated to repent and you should be very determined not to do this again in the future.

Allaah Knows best.