淫荡的Mai Bailey是情妇还是奴隶？

Watching Mai Bailey in this scene it is hard to tell whether she is the mistress of his cock or a slave to her desires to suck on it! He may be tied up but she is the one on her knees working to please him! With her nipples bursting out of her top she proceeds to give him the best blowjob he has ever had! So who is the sub?