A class trust may be created with respect to all of or a portion of income or principal, or both, but the members of the class must always be the sole beneficiaries of the portion of the trust of which they are beneficiaries. Subject to R.S. 9:2068, the trustee may invade principal for the benefit of one or more individual income beneficiaries or one or more members of any class of income beneficiaries, even though such income beneficiary may not be a member of the class of principal beneficiaries.
La. R.S. § 9:1893