[EloiseAndKian]

Hi guys,
So, I am looking after my friend's ginger syrian hamster for a week while my friend is away in egypt. There is a 7 month difference between her and kian! Kian = 5 Months (estimated)
Wotsit = 1 Year

Wotsit is the clever name of this hamster.
Anyway, apart from her being adorably cute, I am a bit concerned.
Her bottom is very dirty, looking like a kind of black-ish colour.
Bigger than a usual hamsters bottom kind of blackish colour.
She also smells, like her bottom smells. I know this may be usual for female syrians having never owned one myself, but should I be concerned? Her tail seems to droop aswell, is this an age thing?

I am just worried, as wotsit is the beautiful ginger hamster that led me to buy Kian <3

Thanks,
Eloise.