(a) If an unmarried man, with the intent to be the father of a resulting child, provides sperm to a licensed physician and consents to the use of that sperm for assisted reproduction by an unmarried woman, he is the father of a resulting child.
(b) Consent by an unmarried man who intends to be the father of a resulting child in accordance with this section must be in a record signed by the man and the unmarried woman and kept by a licensed physician.
Official text of the Texas Family Code as published by the Texas Legislative Council.