public function getMutuals()
    {
        if (!isset($this->__mutuals)) {
            $ids = array_intersect($this->leaderIds->toArray(), $this->followerIds->toArray());
            $query = $this->getService('repos:people.person')->getQuery()->where('id', 'IN', $ids);

            $this->__mutuals = $query->toEntitySet();
        }

        return $this->__mutuals;
    }