While I agree with the answers posted by our moderators with regards to the general flaws in the question, and am not opposed to the question being closed on those grounds, neither actually answers the question here, which is specifically asking "Does this question comply with the site's policy regarding explicit content?".
My answer is "Yes, it does comply with the site's policy regarding explicit content."
Richard linked two very relevant prior meta discussions:
In both discussions, the consensus is clear that we have some degree of tolerance for adult content, so long as what is posted here isn't explicitly NSFW. Note that the decision on the first question was to include a potentially NSFW photograph in the question, but to include it as a link and clearly label it as such.
The other question says "don't link to outright porn", which is sensible, but this question isn't linking to outright porn, or, in fact, anything.
The fact that it contains direct quotes from a forum discussing a sexually explicit topic is completely irrelevant. Our responsibilities for policing the content of this site end sometime before the point where users start to create google searches off of content on our site. If they type in a phrase that they saw on our site, and google shows them something sexually explicit, that is not our problem, nor should it be.
As was pointed out in some of the comments, there are plenty of things discussed here that would lead to potentially very offensive content if someone searched on collective phrases (e.g. "slave leia", or anything related to Kirk's love life).
So no, we shouldn't close that question because searching for the original quote could bring you to a forum where sexual topics are discussed, no matter how offensive some people might find those topics. We're not sending people to that forum. We're not quoting anything explicit from that forum. We're not providing direct links to that forum.
That doesn't mean, of course, that the question couldn't/shouldn't be closed for completely different grounds (as the other answers indicate), but it is fine as far as our policies on sexually explicit content go.