User.findOne({ sessionId: sessionId }, function(err, user) {
  if (!user) return;

  Q.all([
    Profile.findById(user.id).exec(),
    Gallery.findById(user.id).exec()
  ]).then(function(profile, gallery) {
    if (!profile || ! gallery) return;

    var viewModel = {
      profile: profile,
      gallery: gallery
    };
  });
});