Photospheric shearing motions play an important role in the initiation of coronal mass ejections (CMEs). Even so, there are events for which the source signatures are difficult to locate, while the CMEs can be clearly observed in coronagraph data. These events are therefore called ‘stealth’ CMEs. In this work, we numerically simulated consecutive CMEs by imposing shearing motions onto the inner boundary, in two different background solar winds. One of the resulting events is a blob-like stealth CME occurring in the trailing current sheet of its predecessor. We compared some of these scenarios with an observed event, starting from the Sun and during their propagation to Earth. The geomagnetic impact of all the simulated CMEs was also analyzed, as well as the effect of following eruptions onto the structure and dynamics of the preceding  CMEs with which they interact. The final part of this research involved the analysis of the forces contributing to the evolution of these consecutive eruptions. This provided a deeper  understanding of the mechanisms involved in the ‘CME-CME’ and ‘CME-background solar wind’
interactions.