Ann Tara since I'm linking to adult material do I need to put an adult warning on my journal.
I don't think there's any hard and fast rule. You could either make slight mention of it in your post, that would be more than sufficient. Something like a general, "Here are links to stories/artwork I like, slash, rating PG-13 to R". Or in the description for each link, which is helpful (example: "John/Rodney/Ronon Threesome, PG-13").
Re: First Attempt
I don't think there's any hard and fast rule. You could either make slight mention of it in your post, that would be more than sufficient. Something like a general, "Here are links to stories/artwork I like, slash, rating PG-13 to R". Or in the description for each link, which is helpful (example: "John/Rodney/Ronon Threesome, PG-13").