Mark gets on all fours whilst Emma & Rachel sit on his back, Emma sits near his shoulders & Rachel sits on his lower back, 2 minutes into the clip the girls change positions with Rachel sitting on the top part of his back & Emma on the lower part of his back, Mark really struggles to support the combined weight of both girls as his back feels like it is gonna buckle & his legs & especially arms start to buckle under the weight of the girls as they sit comfortably on him as they surf the internet.
