OPINION

delivered the opinion of the Court

In this aggravated sexual-assault case, the State moved to amend the indictment, *354and the trial court granted the motion. The Fourteenth Court of Appeals asserted that the indictment was amended accordingly by striking out certain words “on a copy of the indictment.”1 On petition for discretionary review, the State now claims, inter alia, that the record does not bear out the court of appeals’s assertion that “a copy of the indictment” was altered. In fact, only the written judicial confession in the documents supporting the appellant’s guilty plea was actually altered. We must decide, therefore, whether the physical alteration of a written judicial confession may be regarded as an amendment to the indictment in contemplation of Articles 28.10 and 28.11 of the Texas Code of Criminal Procedure.2

PROCEDURAL POSTURE

The appellant was charged by indictment with the felony offense of aggravated sexual assault of a child for “THE PENETRATION OF THE ANUS of [J.C.], a child younger than six years of age ... WITH FINGER.” This allegation charged the appellant with a first-degree felony offense,3 but with an enhanced minimum punishment of twenty-five years confinement in the penitentiary by virtue of the allegation that the child who was sexually assaulted was younger than six years of age.4 The appellant and the State entered into plea negotiations. From what we are able to gather from the record, the appellant agreed to plead guilty to the first-degree felony offense of aggravated sexual assault of a child — unenhanced, however, by the allegation that the child was younger than six years of age — in exchange for a sentence of twenty-one years. Such an agreed punishment would not have been available for a conviction of aggravated sexual assault of a child younger than six years of age, because it is a lesser term of years than the minimum term of imprisonment of twenty-five years that is applicable for a victim of that age. Accordingly, the State proposed to amend the indictment, apparently in an attempt to have it reflect the first-degree felony offense of sexual assault of a child younger than fourteen years of age, without including the mandatory-minimum enhancing circumstance that the child was also younger than six years of age. At the plea hearing, the trial court acknowledged that the parties had agreed to such an amendment of the indictment, and the trial court approved the amendment.5

However, neither the indictment itself nor a copy of it was actually amended in accordance with the agreement of the parties. Instead, the prosecutor manually struck certain language from the written judicial confession contained in the “Waiver of Constitutional Rights, Agreement to *355Stipulate, and Judicial Confession” that was entered into evidence in support of the guilty plea. As amended (and showing the strike-out), the judicial confession acknowledges that the appellant “did [on the alleged date] unlawfully, intentionally and knowingly cause THE PENETRATION OF THE ANUS of [J.C.], a child younger than six years of age ... WITH FINGER.” Underneath the judicial confession as thus altered appears the handwritten notation: “State moves to amend the indictment as reflected above.” But nowhere in the record do we find either that the indictment itself was actually altered in any way or that a copy of the indictment with the agreed changes noted on it was introduced memorializing such an amendment. Based upon the unamended indictment and the appellant’s judicial confession, the trial court nevertheless accepted the appellant’s plea, found him guilty of aggravated assault of a child, and set his punishment at the agreed twenty-one-year term of imprisonment.

On direct appeal, the appellant argued that his twenty-one year prison sentence was illegal because unauthorized. He argued that the amendment to the judicial confession constituted a valid amendment to the indictment and that, as thus amended, namely, by striking the language “a child younger than six years of age,” the indictment alleged only the second-degree felony offense of sexual assault of a child under Section 22.011(a)(2)(A) of the Penal Code, which carries a maximum sentence of twenty years.6

The court of appeals agreed. In its unpublished opinion, however, the court of appeals misread the record, as follows:

On October 21, 2008, the State submitted the amendment to the indictment by *356physically striking through the words “a child younger than six years of age” on a copy of the indictment. Appellant did not object to the amendment. The trial court subsequently approved the amendment. Therefore, the indictment was properly amended.7

Finding that this amendment to the indictment had the effect of reducing the charge against the appellant to the second-degree offense of sexual assault, the court of appeals concluded that the appellant’s sentence was indeed unauthorized, and therefore, illegal.8 Accordingly, the court of appeals set the conviction aside, ordered the parties “returned to their respective positions before the ‘guilty’ plea was entered,” and remanded the cause for further proceedings.9 We granted the State’s petition for discretionary review, inter alia, to address its contention that the amendment to the judicial confession did not amount to an amendment to the indictment. We agree with the State that an amendment to the written judicial confession that was introduced in support of the guilty plea does not amount to an amendment to the indictment. We therefore reverse.

ANALYSIS

A person commits sexual assault if, inter alia, the person “intentionally or knowingly ... causes the penetration of the anus ... of a child by any means,” a child being “a person younger than 17 years of age[.]” 10 This is a second-degree felony, punishable by a term of two to twenty years in the penitentiary.11 A person commits the offense of aggravated sexual assault if, inter alia,, the person “intentionally or knowingly ... causes the penetration of the anus ... of a child by any means” and “the victim is younger than 14 years of age.”12 This offense is a felony of the first degree, carrying a punishment range of five to ninety-nine years or life in the penitentiary.13 But the five-year minimum term of imprisonment for this first-degree felony “is increased to 25 years if ... the victim of the offense is younger than six years of age at the time the offense is committed[.]”14 The indictment in this cause originally alleged that *357the appellant caused the penetration of the anus of a child less than six years old, thereby charging him with a first-degree felony with a minimum term of punishment of twenty-five years.

But a victim who is younger than six years of age is also, by definition, younger than fourteen years of age. Sexual assault of a fourteen-year-old is, in essence, a lesser-included offense of sexual assault of a six-year-old. Therefore, the original indictment was already, without the necessity of an amendment, sufficient to authorize conviction for the unenhanced first-degree felony of sexual assault of a child younger than fourteen years of age.15 If the indictment was never amended in this case, then there is nothing illegal about the appellant’s twenty-one-year sentence. The key inquiry in this case therefore devolves into whether the court of appeals erred to conclude that the indictment was in fact ever amended, such that the appellant was charged with the second-degree offense of sexual assault rather than the first-degree offense of aggravated sexual assault of a child under the age of six. If the indictment was in fact amended, the judgment entered at the trial court level may well have been illegal. However, if the indictment was not amended, the sentence entered by the trial judge pursuant to the plea agreement was permissible, and we should reverse the court of appeals’s judgment.16

Articles 28.10 and 28.11 of the Code of Criminal Procedure allow for the possibility of amending an indictment and supply the procedure to be followed for successful amendment.17 In Riney v. State, this Court conducted an analysis of Articles 28.10 and 28.11.18 To the extent that Ward v. State19 had required physical in-terlineation of the original indictment found in the clerk’s file as the exclusive method of amendment, Riney overruled Ward.20 The Court then explained an alternative method for amending an indictment;

It is acceptable for the State to proffer, for the trial court’s approval, its amended version of a photocopy of the original indictment. If approved, the amended photocopy of the original indictment need only be incorporated into the record under the direction of the court, pursuant to Article 28.11, with the knowledge and affirmative assent of the defense. This version of the indictment would then become the “official” indictment in the case, and it would continue *358to state, presumably in “plain and intelligible” language, the nature and cause of the accusation.21

The Court in Riney then noted that Ward would “continue[ ] to stand for the proposition that ‘[njeither the motion [to amend] itself nor the trial judge’s granting thereof is an amendment; rather the two comprise the authorization for the eventual amendment of the charging instrument pursuant to Article 28.10.’ ”22

Our holding in Riney did not necessarily rule out the possibility that there could be other valid methods to amend an indictment. We need not decide that question today. Regardless of whether there may be legitimate ways to amend an indictment other than to make changes directly to the original indictment or to place an amended duplicate into the record, we do not believe that manual changes to a written judicial confession should suffice under any circumstances. A judicial confession in a guilty plea, even when it is reduced to writing, is decidedly not a charging instrument, nor may it serve as a reasonable facsimile for one. Its purpose is altogether different than that of a criminal pleading. A written judicial confession provides evidentiary support for a plea of guilty to the charges alleged in the indictment or to some lesser included offense of that which is alleged in the indictment.23 Any change or interlineation to the written judicial confession serves to change the evidence offered in support of the plea, not the content of the charging instrument. It would complicate matters intolerably to hold that a change or alteration to a written judicial confession may also (or alternatively) serve as an amendment to the pleading itself.

CONCLUSION

We hold that the State’s request to amend the indictment and the trial court’s granting that request did not serve to amend the indictment where alterations were made solely to the written judicial confession. Therefore, the appellant’s sentence was authorized, and the court of appeals erred in vacating the trial court’s judgment. We reverse the judgment of the court of appeals and reinstate the judgment of the trial court.

HERVEY, J. filed a concurring opinion in which KELLER, P.J., and KEASLER, J., joined.

concurring in which KELLER, P.J., and HERVEY, J., joined.

I would hold that Julio Cesar Puente is estopped from challenging his sentence as illegal.1 As the record clearly shows, Puente and the State reached an agreement whereby Puente pled guilty in exchange for the State’s consideration to abandon the allegation that the victim was under six years old, which raised the min*359imum punishment to twenty-five years’ imprisonment. Puente was punished in accordance with the agreement and his punishment for the lesser-included offense was authorized. It is absurd to permit Puente to attack the propriety of his sentence on the basis that the indictment was not properly amended under the terms of the plea agreement. There is no reason to hesitate to hold Puente to the terms of the valid plea bargain agreement. We should not be addressing the merits of his claim under these circumstances, and the court of appeals should have declined to do so as well.

concurring in which KELLER, P.J., and KEASLER, J., joined.

I join Judge Keasler’s concurring opinion and agree that the court of appeals should not have even addressed the merits of appellant’s claim. I would find it unnecessary to decide whether the indictment in this case was amended also because, even if it were amended, appellant engaged in a course of conduct that had the effect of waiving any requirement of an allegation in the indictment of “a child younger than fourteen years of age.” See Joseph v. State, 309 S.W.3d 20, 24-26 (Tex.Crim.App. 2010) (in absence of express and explicit waiver of Miranda rights, totality of circumstances may show voluntary waiver of these rights); Trejo v. State, 280 S.W.3d 258, 263 (Tex.Crim.App. 2009) (Keller, P.J., concurring in the judgment) (“unless waived, an indictment is necessary to vest the trial court with personal jurisdiction in a felony case”).

With these comments, I concur in the Court’s judgment.