An internal combustion engine (10) comprises rotatable bodies (24) each received in a respective internal cavity (20). The engine includes at least one inlet port (40,42) for each internal cavity in fluid communication with the combustion chamber(s) (32) thereof at least during their intake phase and a beginning of their compression phase. The bodies (24) are angularly offset with the beginning of the compression phase of the combustion chamber(s) defined by each body being simultaneous with at least a beginning of the intake phase of the combustion chamber(s) (32) defined by a different one of the bodies (24). A respective conduit (62,64) provides a fluid communication between an inlet port (40) for each body (24) and an inlet port (42) for the different one of the bodies (24), with each conduit (62,64) being in fluid communication with a plenum (21) for receiving pressurized air.