Even without a translation, dark-skinned girl is clearly dangerous.

And is she still calling sempai "onii-san"?

Mithiwithi said:

Even without a translation, dark-skinned girl is clearly dangerous.

And is she still calling sempai "onii-san"?

That's the general idea of it yeah, Dark-skinned girl is just blurting out "Senpai, you're definitely in love with onii-san aren't you!"
She calls Douki-chan as senpai, just to be clear.

Come now, Douki-chan. I'm pretty sure he of all people would be more than glad to hear that.

Yeah! I'm with the intern here. If you two like each other stop beating around the bush already!