Interesting four.... I found the music quite suitable especially since it did not replace the original sound of the guy and gal, but was layered over it. But will say it should have been just a little softer. But erotic choice.
Lucky you my wife is neither .. lotta big dicks .. most likely a wife but not their husbands dick they are sucking .. they still seem happy to suck .. esp mature women they love sucking young strange cocks