lol that's so true. People's perception of what an "offensive image" is, is very weird anyway.
@Megabyyte - lol I do that. I once found the perfect bikini top on sale for 3 € or so, but no pants in my size. So I bought black underpants of a synthetic material and cut off a little bow they had at the front. You really don't notice the difference, unless you accually take it in your hands.
I have said this for ages. I cannot fathom why women believe there is a difference. I suppose they equate underwear with being the closest to being naked since the underwear is the last thing they would take off as they undress before they are deemed to be naked. In other words, they consider underwear to be part of the undressing sequence before sex. Bikinis, not so as it is not often the women are taking off their bikinis before the act of sex. It does happen, but not often, whereas at all times women are removing their underwear before the act of sex. This is what probably leads to them being somewhat shy about it.
There is also the fact bikinis are somewhat thicker than underwear. No chance you will see the snatch. Not so with underwear. I have seen much snatch by gazing right through the panties. Nice view. Cannot do the same with bikinis.
Women also do not wish me to see any er 'stains' upon their panties, stains which do not show up on their bikinis. Pussy stains or even *gag* skidmarks.
Swimsuit bottoms are usually more substantial like someone above said, though I agree about the bras. Victorias Secret actually models their bikini tops after their bra lines. Also, swimsuits are meant to be seen--underwear isn't.