^Find a Watamote DJ drawing that actually has a background and there's good chances of finding a more or less disgusted Emoji somewhere in there. Hell - that happens often enough in the actual comic; it's kind of her running gag.
I wonder if anyone here has ever seen a pregnant woman. This would barely even qualify as having put on weight, much less pregnancy. Her back is in a curved line because she was side-hugged. Sheesh.
She is not a third wheel she is a disguised wingwoman! It's all part of her master plan. Minus the part where they start getting frisky on her back of course...