Given the amount of interest these girls gathered in the last few months, I'd say that sex is being sold with Bitcoin, and not an awful lot is being sold anyways

There's also bacchusent.com, which I think is the first and only Bitcoin-based porn site that was publicized on Reddit a while back... If folks are making profit selling porn with Bitcoin it is probably this website... and I don't really think they're making that much (although there are no numbers publicized).
It's still pretty early for this industry and Bitcoin. Eventually there will be a bigger connection.