[@Mahz], this page only lists latest ten online on friends list:
http://www.roleplayerguild.com/me/friendships
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Easiest stage 1 for adult stuff is an IntCk forum for such. Stage 2 could be the opt-in section.
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Considering that the 1x1 tag only shows up in that forum, perhaps you could make the basic pairing tags and only have them available in 1x1? (tags like MxM, MxF, FxF, FxOther, MxOther)