Having not used anal toys before I am unsure what to buy. I really like the look of fun factory's flexi felix and bootie. I know they aren't the same type of toy. I would like something that is reasonably easy to use and I always thought I'd get a butt plug, but these both look pretty small diameter-wise. Is there much difference in ease of use with these toys for a beginner? I think flexi may be a bit cuter...