PBA: Completely disagree. From experience: if they start off as friends from childhood, playing together and all that kind of stuff, then I don’t think it turns out at all romantic if it stays friendly and brother-sistery. Take me and my cousin: we actually don’t really talk to each other anymore, but if someone told me that it would be normal for me to have romantic feelings for the guy I grew up with, who spent ten years refining the art of teasing me, thought the epitome of fun was throwing bubble gum at my head, and loved burping the ABCs, I would look at them like they were crazy- too much history. (Oh,boy, I hope too many more people don’t figure out who I am…) Depending on closeness of the cousinly relationship, you can possibly compare it to adopted siblings.
Now, a cousin I’d barely see, maybe… I don’t even know about that.