Kinky threesome with sub being arched and machined

The video features a submissive woman with big tits being bound and deviated by her dominant partner. She is also subjected to various forms of bondage, including deepthroating and choking. The scene begins with the woman lying on her back while her partner enters from behind. He takes control and starts to tease her, slowly inserting his hand into her mouth. As she continues to gag, her partner can't help but moan in pleasure. The woman then proceeds to use a variety of toys and techniques to bring her slave to the brink of orgasm, before finally using a machine to make him cum. This is a unique and extreme threesome that explores the boundaries of lesbian and BDSM play.