There are couple of alternatives for you.
Cytu.be and Rave.io
They both support Google Drive.
One of their main differences is that rave.io is only available on iOS and Android.
Some of the key features that may interest you are (as found in their official websites):
How do I pause or seek the video?
CyTube controls the video playback with a timer on the server in order to provide smooth playback and prevent accidental clicks by channel moderators from interrupting the video for other people. However, if you need to control the video, you can right click your name in the userlist and click "Give Leader". While you are leader, you will be able to pause/unpause and seek the video. When you're done, right click your name again and click "Take Leader".
How do I enable subtitles on Google Drive videos?
As of July 28th, 2015, it is now possible to use Google Drive subtitles on CyTube. Please see here for instructions on adding subtitles to your Google Drive videos.
Google Drive Userscript Installation Guide
What does Rave do?
Rave is the purest form of social media. We help people come together around content they love on tablet and mobile, perfectly synchronizing videos while talking and texting. Rave has recently expanded from shared viewing to creating new content, with RaveDJ, the world's first AI DJ, capable of autonomously composing seamless mashups from user-selected songs.
What can I watch on Rave?
Rave features content from YouTube, Vimeo, Reddit, Google Drive, Dropbox, and Viki.
Who can I use Rave with?
Invite some friends, or start a public rave and make a new friend. Rave has users in almost every country in the world, so you never know who you're going to meet.
Text or chat by voice while enjoying content from YouTube, Netflix, Vimeo, Reddit, Google Drive, and more! Come together for a international movie night, or combine your phones to create an instant speaker system!