So the first part of this story was solidly written, well drawn & well characterised. This then takes everything good about the original and amps it up! The addition of William to the mix adds so much. His gagging-for-it-but-reluctant-to-admit-it energy adds a lovely little spice to our opening (as well as allowing us to behold Mark in seduction mode), as well as providing a definitive bottom for our superpowered switches to play with.
William's presence also allows Midnye to use his POV to really highlight just how much succulent manmeat there is on display from Mark & Allen, who have absolutely nothing to be ashamed of. The male gaze in action.
The sex is smoking hot, with the threeway element allowing all sort of extra positions & configurations, as our alien (and half-alien) superhunks fuck Will straight to heaven. Multiple positions, spitroasting, rimming, chainfucking, double penetration... All drawn beautifully, as they well & truly fuck William's brains out (he isn't gonna be able to walk straight for days & it will be 100% worth it).
Then just to add to the fun, our end teaser hints that even after all this, our superstuds aren't quite ready to call it quits...
My only tiny complaint, is that we never actually get to see William in the mask (which I absolutely think would turn him on), but that is so minor that it barely matters.
Easy recommendation, absolute scorcher!