Kinky dude sprays some liquid over his GF's face

Movie description: I was looking at some non-professional videos final night and i ran into this completely perverted chap. It seems his gf just gave him a oral pleasure but instead of spraying his semen load over her face this chab set up a container of some goo-like liquid and sprayed her sweet face. I have not at any time seen everything weird like this, does anyone knows what is that liquid?