Last I heard, depending on local attitudes, potentially jail. For that matter, minors can be charged for producing images of themselves. The CSAM laws in the US tend not to draw distinctions between first- and third-party production:

https://www.ojp.gov/ncjrs/virtual-library/abstracts/blurring...

https://www.innocentlivesfoundation.org/threat-of-sg-csam/

https://www.findlaw.com/criminal/criminal-charges/child-porn...