A system for automatic in-situ gas lifting of fluid in a multilateral well may include a plurality of downhole sensors arranged to periodically capture pressure data associated with the multilateral well is disclosed. The system may include a processor operatively connected to the downhole sensors and configured to dynamically determine a pressure gradient value associated with the multilateral well based on the periodically captured pressure data. The system may include a first inflow control valve (ICV) operatively connected to the processor and placed within a first lateral to automatically control a flow of a gas from a downhole natural gas source into the multilateral well based on the dynamically determined pressure gradient, and to cause a lift of the fluid received from a second lateral within the well when the ICV is open.