[LeanHunk]

I'm a straight guy and I like speedos.

Wearing speedos does not make you gay, contrary to popular (American only?) belief. A big part of the reason why (American) society views it as such is because they see so many men at gay pride parades running around in them. This isn't even mentioning how they leave little to the imagination. Pair this with the stereotype of gay guys being over-sexed/promiscuous and you can see how a strong association between speedos and gay culture arises.

If you are wearing a speedo with reasonable coverage (i.e. your penis isn't bulging through the fabric; it covers the majority of your penis and posterior; etc.) I don't see why anyone should be offended. Granted, I wouldn't wear one at the kids' pool/beach, but at any other swimming venue they are fair game.