The animation quality is... a choice. Like someone discovered Flash and said "yes, this is enough." Nami's hair is the right shade of orange-red, I'll give them that. But her face during the deepthroat segment looks like she's trying to solve a difficult math problem while choking. Which, fair. The boat setting is weirdly empty, just these three going at it while presumably the rest of the Straw Hats are somewhere below deck wondering why the ship is rocking so rhythmically.
There's this moment where the second pirate enters from behind, doggystyle position, and the loop syncs up so badly that Nami's mouth and lower body seem to be operating in completely different time zones. It's almost hypnotic. The cumshot finale tries to be dramatic but the physics are pure nonsense, ropes of white just appearing mid-air like they teleported. And the public sex angle they mention in the description? There's nobody watching. Just empty ocean. Exhibitionism with zero audience, which is honestly a mood.
The threesome choreography has ambition though. Nami alternates between sucking one guy while the other pounds her from behind, and there's this brief moment where the animation almost flows naturally before it glitches and her neck does something anatomically concerning. The deepthroat finish has her mouth full, which they clearly spent the most time animating. Still looks like she's holding marbles in her cheeks but whatever, I've seen worse on Newgrounds back in the day. The whole thing feels like someone's first hentai project they abandoned at 80% completion. Not polished, not terrible, just... existing. Like finding a half-eaten sandwich. You know what it's supposed to be, but the execution leaves you questioning choices.