In the first part of the ep Jennifer wears a tight green top. Despite the tightness there's not much nipples on view, though you can see the outline of her hard abs a couple of times.
In the second part she's wearing a blue and white check shirt, unbuttoned right down between her breasts giving tantalising glimpses of her black underwear, either a camisole top or bra, not sure. Not particularly explicit but rather tittilating.