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[edited by: Robert_Charlton at 8:46 am (utc) on Aug 30, 2013]
[edit reason] made example less specific [/edit]
The obvious repercussion you could run into (and rightly, I would add) is Safe Search. For that reason, you might want to put any borderline adult materials into their own directory and make it easier for search engines to isolate what to filter.
No guarantees that will work, of course, but it would be a start.
I would have thought back in the old days it would have been a good idea to have two sites - or a main site and a subdomain; one geared toward the adult-related practice, the other geared toward the other areas of practice.