The thing about Whentai flash loops is they know exactly what they are, no pretensions. This one opens with Flare already mid hunt, that red hair practically vibrating with intent while Lucy stands there like she's deciding whether to be annoyed or intrigued. The animation style is rough, that specific era of vector tweening where limbs don't quite bend at the joints but slide into position. Honestly it adds to the charm, like finding an old Newgrounds submission that somehow survived the purge.
Flare gets Lucy pinned and immediately goes for the ass. Not even a warmup kiss, just straight to spreading cheeks and getting her tongue involved. The cunnilingus part is treated almost like an appetizer, which is funny because most games would make that the main course. Here it's just prep work. The rimming is where the animator clearly put all their effort, the tongue movements actually have some rhythm to them instead of just looping the same three frames. There's this moment where Lucy's expression shifts from "what are you doing" to "oh, okay then" that got a genuine laugh out of me. Her resistance just evaporates somewhere between the first and second lick.
The sound design is nonexistent, which for a browser flash thing is almost expected. I wish they'd added even basic squelch effects because the visual of Flare eating ass with such dedication deserves audio backup. The Fairy Tail parody aspect is surface level, you don't need to know anything about the source beyond recognizing the character designs. And those designs are doing a lot of heavy lifting here, Flare's wild red mane and Lucy's blonde pigtails are basically the only identifiers. The anal focus makes this stand out from the usual lesbian hentai flash fare, rimjob content is weirdly underrepresented considering how many games promise "anal" and then just mean doggy style. This one commits.