我和妹妹在里面都不想出来了用英文你可以这样子去表达。
My sister and I don't want to come out inside.
重点词汇
妹妹
younger sister (who has the same parents as the speaker); younger sister (who is of the same family and of the same generation)
在里面
on the inside; Inside
不想
not expect
出来
come out; emerge; appear; arise; be out; complete/finish