Two guys fuck a mistress in anus, who couldn't get enough of BDSM torture

The guy with the collar became the perfect slave for his mistress, because he obediently fulfilled her whims by licking her shaved pussy. This was not enough for the bitch in the leather outfit, so she brought a second guy to fuck her in anus. Even the slave got involved, who did double penetration on the bitch, who loves femdom.