She was a powerful personality. All the records indicate that she was of seemingly above average beauty standards, but nothing earth shattering.

Instead, it is claimed that her strength of personality is what attracted the powerful men in her life to her.

She had access to creams, ointments and fragrances and good sleep. She also kept ugly ass lady servants to keep the contrast in her favor.

She probably like a lot of celebrities who are average looking but over produce to look way hotter.

True. She was more seductive and alluring than plain ol sexy (according to my readings).

One theory is that she was a bit odd-looking, but pointing that out would likely result in a painful death, so everybody erred on the side of flattery.

Yeah, it is the exact opposite of what OP claims. Historians are basically the only ones constantly demystifying her, while her legend as a sexy femme fatale lives on in the general public mind (thanks pretty much exclusively to Hollywood, because let's face it, noone would know she existed without them).

Cesar sang praises to her mouth, which could be interpreted to be about her actual mouth, her oratory skills, or her oral skills. Knowing how Romans loved innuendo, probably both.