There is nothing that says you cannot wear mountain biking shorts, they are baggy. For longer distances you would want the support of road shorts but if you only need the chamois go mountain. Or get a cute wrap (I love my Novara one for commuting) and then you feel a little less self conscious when you are off the bike. Or you say I want to ride and I don't care how I look I am going to have a good time!
Amanda
2011 Specialized Epic Comp 29er | Specialized Phenom | "Marie Laveau"
2007 Cannondale Synapse Carbon Road | Selle Italia Lady Gel Flow | "Miranda"
You don't have to be great to get started, but you do have to get started to be great. -Lee J. Colan