I'd avoid all of Pleasure Island if she's offended by strong language and/or sexual content.
Actually, the Jazz club would be ok, and most places will not have 'sexual content' so to speak, but will certainly have very loud music, with lyrics she may not find pleasing. The Comedy Club and Adventurer's Club will both have a fair amount of inuendo, but won't be likely to come right out and SAY something (though there's frankly no missing the intent!). You aren't likely to hear swearing in any of the clubs, but are very likely to hear something that may offend her out in the 'street' area. It's a giant bar............if she's offended by a bar atmosphere, I'd skip Pleasure Island, or find something else she might enjoy while you go.