Can't get enough of a large member and instantly pleasure it (Gush Orgasm 69)

As a femdom slave, I\'m tasked with pleasuring my Mistress\' massive tool. My petite frame trembles as I grip her colossal member, my small tits heaving. The intense sensation sends me into a frenzy of masturbation, culminating in a gushing squirt and a covering of warm sperm.