Theft? Yes. Unless he willingly donated the sperm. In the same case, if he donated the sperm, then she couldn't sue for child support. It could be argued that any masturbatory emissions are classified as abandonment.

I have no idea where I am going with this.

I just quoted legally blonde while I was trying to be serious.

By contribution to the topic fails.

-------
I've done the damage, the damage is done.
I pray to God that I'm the damaged one.