1) BDSM terminology 
Facesitting, also known as queening, is a sexual practice in which one partner sits on or over the other`s face, typically to allow or force oral-genital or oral-anal contact. It is common for this position to form part of BDSM, involving dominance and submission, though this need not be the case. Within a BDSM or D/s context, facesitting can be ....