Full covered service is often abbreviated to the acronym FCS, especially in the menus of sex workers and in the client field reports posted online.
More About Covered Full Service (CFS)
Full covered service is similar to full service, and in many instances, the two terms are used interchangeably. However, the term full covered service explicitly implies that a condom must be worn during the full-service encounter. Most sex workers offering full covered service will refuse a client if he does not wear a condom.
Full covered service ensures measures that help prevent sex workers and their clients from contracting sexually transmitted diseases. Condoms help prevent the spread of many STDs, including HIV, genital herpes, chlamydia, syphilis, and more.
A condom is always required for sexual intercourse during an entire covered service session. It is up to the sex worker to require their clients to wear condoms during oral sex.