Is there no way for the high risk hpv virus(hpv type that causes cervical cancer) to enter the body other than sexual activity?is there really no other way?

Contact with the virus, whether through actual sexual intercourse, or "foreplay" with vaginal insertion of fingers with viral presence, c transmission of the virus can be with one of multiple sub-types, including "high risk" sub-types.

Oral sex can transmit HSV 2 as can rubbing of the genitals together without penile penetration into the vagina. Get HPV vaccine.