The best that might be said of Mason's dull all-girl depiction of double penetration is her frugality: using the same ladies over again rather than hire 12 actresses for 3 vignettes.
So we watch the likes of Cherie DeVille and Lyra Law donning strap-ons to gang up on this or that girl. Similarly Abella Danger is the happy victim and later returns as one of two doms.
Since Mason uses a single-camera technique (more frugality) this makes for 2-1/2 hours of dullness.