Raven is Deaf and, although she sometimes speaks vocally on The Circle, she prefers to sign. In those instances, Paris is here to translate to get her messages typed in the chat boxes on The Circle. Of course that makes for some awkward exchanges, as Raven and her Circle beau, Marvin, have some steamy chats. But Paris and Raven are also friends outside of the show, so their dynamic works with Paris being the roundabout third wheel.
Source: https://www.distractify.com/p/is-paris-the-circle-contestant-too