Hi jclown. Welcome to Psych Central. Sorry you are conflicted about how and who to be in a relationship with. For me, finding common ground is more important than fetishes or passion. These things usually do not form the basis of a lasting relationship. The problem with playing with women's bellies is that it can get you involved in having a baby before you have established a solid relationship.
Many people here at PC find they can share these feelings and what they are going through with the confidence that people go through similar things and can empathize. So many forums are offered as well as Chatrooms (after you have 5 posts or comments on others posts). Depression chat meets on Thursday night at 9pm EST and Anxiety Friday at 8PM EDT EST.
You can also be an active member in other ways like supporting others in their questions, reading articles and posts
http://forums.psychcentral.com that are applicable to your area of concern.