I recently kissed a girl with gential herpes we didn't do anything sexual but she didn't have any sores in mouth area should I be worried?

Transmission. Hsv is transmitted through open active lesions. Unlikely for you to contract genital herpes from someone just by kissing them - unless they had lesions in their mouth or on lips.
Genital herpes. Is she had no lesions on her lips or mouth, it is unlikely you need to worry about contracting the disease.