These girls were forced to suck cock

This married couple managed to get a sex slave whom they forced to suck cock and have sex with them. The girl at first thinks she will only be fucked in a three-way session, however she realizes that she will be forced to suck when they put a collar on her and put their hands on her. There the situation becomes tenser but she does not let herself be overwhelmed and does her job, giving unparalleled blowjobs and getting the cum out of that huge cock.