Let's be grown up about this. Pinterest is an app for sharing lists of scrumptious-looking stuff. It's not for girls or guys, it's for people who like looking at things.
On Pinterest, you have fine-grained control over what pins appear in your feed. In fact, for all Google's efforts to figure out how to control unwanted social stuff with Circles, I daresay they got it backwards. Pinterest is the reverse of Google+ circles, and it's better for users.
Via The New Company