ジェーン、あなた少しやせた?
Jane, did you lose some weight?

 ううん。でも最近、きつめの服着てるの。これ以上太らないようにしなきゃ。
No, but I wearing tighter clothes these days. I have to make sure I don't get any fatter (than this).

 そんな心配いらないわよ。食べたいだけ食べなさい。あなた太ってるわけじゃないんだから。
You don't have to worry about that. Eat as much as you want. You're not fat.

 もうちょっとやせてればなあ… ああいうのも着られるのに。
I wish I were a little more slimmer. Then I'd also be able to wear something like that.

 まだ着られるだろう。
You can still wear it.

 駄目… これ見てよ! この脂肪をなくさないと。
No. Look at this! I need to get rid of this fat.