Instagram launches a new feature called Instagram Direct, with that you can send pictures/videos to your friends individually.
Today, we’re excited to bring you Instagram Direct, a new way to send photo and video messages to friends.How To Use It?
First Take a picture/video > apply filter if you want > once you're up to share screen you will see something like a tab page called "Direct" at the top.
When you select "Direct" it'll take you to Direct-user interface where you can add people you would like to share your picture/video. You must be following the person you want to share the picture/video with.
When you're done with it, tap on the green button at the top.
Watch Instagram’s co-founder Kevin Systrom Announcing Instagram Direct
Read Instagram's offcial blog post about Instagram Direct