solo means you fuck the girls by yourself and your buddy makes himself scarce, sharing means you invite your buddy to join in (threesome)... it's an "either/or" situation, pick the one that suits you. it's a scene by scene choice.I couldn't find an answer to this, but sorry if this was said and I missed it. What's exactly the difference between Solo and Sharing? What I mean is, do Sharing have extra options available that are missing in Solo, or they are two "different games"? Like, if I play only Sharing can I complete 100% or I've to play Solo as well later?