2👍
✅
You should checkout Many-To-Many
relationships.
class UserProfile(models.Model):
user = models.OneToOneField(User)
avatar = models.CharField(max_length=40, default='0')
activation_key = models.CharField(max_length=40, blank=True)
key_expires = models.DateTimeField(default=django.utils.timezone.now)
contacts = models.ManyToManyField(User)
Source:stackexchange.com