1. e4 c5 2. Nc3 gives Black several ways to get a comfortable game. As white in the Sicilian, you want to drive the play as often as you can, not limit yourself by giving the opponent a "trampoline bounce" in the early middlegame.

After 1. e4 c5 as white, I would smile and let the game proceed 2. Nf3 d6 (the most usual reply) at which time 3. d4 is expected. I just reply 3. d3 and watch my opponents' expressions change from happiness over heading into a well-known Sicilian system to one of mild concern, as white now has even more options at his disposal.

You can get into a very nice King's Indian Attack formation using 3. d3, and that opening is one that is "fluent" and very easy to understand, even better, it almost plays by itself, and white's attacks unfold almost without effort.