Cum on face, an opinion

Dear all, I would like to ask your opinion. My partner and i are in an enm. In her first encounter she accepted the other guy to cum on her face and mouth ( something that also happened in the second encountered with the same guy, according to her because she was caught off guard). My question: I would consider cumming on the face quite intimate unless someone has a particular kink for it (something she does not have, as far as i know). Would you agree?

Thanks!