I would say even necessary at this point but definitely regulated. Also all possible protections she be put in place through restrictions and passwords. You do not want you child stumbling on to RedTube. There are also other dangers in social media. I do not think social media is a good place for children, it is nothing but vanity and mean spirited people. Social media for my kids is the playground, the river, the swimming pool, the clubs they belong to, their play dates, etc. Since I hope school it is so important to keep up on the social side of issues, you do not want to stunt their growth in social issues.
I have only had sex with one woman outside of Jen and that was the stripper I could not fit into. I am sure there are woman with a depth deeper than my length, I would say it is kind of rare but definitely they are out there. I will probably never know personally but there are some monsters on the board that can chime in.