Second Life has a sexual side. There are normal aspects of sex found in Real Life. The full range of them from RL Dating to hookers and brothels along with a load of kink.
Linden Lab seems to be realizing that the adult side of SL is growing while the PG and Mature side is shrinking. They seem to be actively trying to influence the direction of growth and perception of SL’s adult content, rather then hide it as it seems was the previous choice.
This section contains the articles I’ve written covering the Adult aspects of SL and changes the Lab is making.