No, this is not possible. This would severely hurt your application performance, to the point where you will have all users of the application shouting at you. If you want to increase availability, consider using async replication and SRM for orchestration. This will provide you the ability to failover VMs after a failure between the locations.

Keep in mind, a Stretched Cluster means ALL writes need to be acknowledged by BOTH locations before they are acknowledged to the VM, in other words, every write IO will take 200+ MS. I am sure that would not be acceptable in terms of performance.