Sequelize save in multiple tables

Okay so i have a huge problem that i have no clue on how to fix. i have the following setup for my titles:

var Title = sequelize.define('title', {
        id: DataTypes.INTEGER,
        name: DataTypes.STRING,
        organization_id: DataTypes.INTEGER

    }, {
        freezeTableName: true,
        instanceMethods: {
            retrieveAll: function (onSuccess, onError) {
                Title.findAll({order: 'Rand'}, {raw: true})
                    .ok(onSuccess).error(onError);
            },
            retrieveById: function (quote_id, onSuccess, onError) {
                Title.find({where: {id: quote_id}}, {raw: true})
                    .success(onSuccess).error(onError);
            },
            add: function (selectedCompetence,onSuccess, onError) {

                var title = {id: null, name: this.dataValues.name, organization_id: this.dataValues.organization_id};
              Title.build(this.dataValues)
                    .save().ok(onSuccess).error(onError);
            },
            updateById: function (quote_id, onSuccess, onError) {
                var id = quote_id;
                var quotes = this.quotes;

                Title.update({quotes: quotes}, {where: {id: id}})
                    .success(onSuccess).error(onError);
            },
            removeById: function (quote_id, onSuccess, onError) {
                Title.destroy({where: {id: quote_id}}).success(onSuccess).error(onError);
            }
        }
    }
),
    Title_has_competence = sequelize.define('title_has_competence', {
        id: DataTypes.INTEGER,
        title_id: DataTypes.INTEGER,
        competence_id: DataTypes.INTEGER,
        competence_level_id: DataTypes.STRING
    },{
        freezeTableName: true,
        instanceMethods: {
            retrieveAll: function (onSuccess, onError) {
                Title_has_competence.findAll({order: 'Rand'}, {raw: true})
                    .ok(onSuccess).error(onError);
            },
            retrieveById: function (quote_id, onSuccess, onError) {
                Title_has_competence.find({where: {id: quote_id}}, {raw: true})
                    .success(onSuccess).error(onError);
            },
            add: function (competence,onSuccess, onError) {
                var ins = {id: null, title_id:competence.title_id, competence_id: competence.id, competence_level_id: competence.level};
                Title_has_competence.build(ins)
                    .save().ok(onSuccess).error(onError);
            },
            updateById: function (quote_id, onSuccess, onError) {
                var id = quote_id;
                var quotes = this.quotes;

                Title_has_competence.update({quotes: quotes}, {where: {id: id}})
                    .success(onSuccess).error(onError);
            },
            removeById: function (quote_id, onSuccess, onError) {
                Title.destroy({where: {id: quote_id}}).success(onSuccess).error(onError);
            }
        }
    });
Title.belongsToMany(Title_has_competence,{foreignKey: 'competence_id'});

In my system when you create a title you pass along an array of competence:

In this case the competences is the array: selectedCompetence Once the title has been created i need to loop through the array of selectedCompetence and insert them into the Title_has_competence table.

I feel like i have litteraly tried everything from Hooks to minor hacks but nothing has worked.

Can anyone please push me in the right direction?

Things i have attempted:

  Title.build(this.dataValues)
    .save().done(function(err, success, selectedCompetence){
      var i = 0;  // here selectedCompetence is undefined
  });

---

  Title.build(this.dataValues)
    .save();
Title.hook('afterCreate', function(success,selectedCompetence){
    var i = 0; // here selectedCompetence is an object with other values
})

---

    Title.create({id: null, name: this.dataValues.name, organization_id:this.dataValues.organization_id}).then(function(title, selectedCompetence)
{
    var i = 0; // once again selectedCompetence is undefined
});