Second Life is getting a little less steamy for people who want to use the virtual world for a myriad of PG-rated experiences, such as taking classes, prototyping buildings or designing virtual goods. For those who don’t, Second Life is moving adult-oriented content to a new, X-rated “continent” so they can continue to frolic as their hearts desire. Linden Lab, the company behind Second Life, announced the changes Wednesday as part of a broader move to let users customize the site’s content.