How to say “Please use your own water bottle; I've already drunk from this one.” in Japanese

In Japanese

自分(じぶん)の水(みず)のボトルから飲(の)んでね。こっちはもう口(くち)をつけて飲(の)んだから。

Jibun no mizu no botoru kara nonde ne. Kotchi wa mō kuchi o tsukete nonda kara.