It seems Buni's underwear is...riding up a little and you seem to be staring.
If she gets to embaressed she may scream...and if she screams...a certain someone will come running..
Just a heads up ^.^
Yes btw. Buni DOES have a black tail.
Filled in slopily by me but its there none the less...

Drawn by Doro.
you should be able to recognise his art style by now XD