Although Mr. Huntington makes an excellent point, I have to wonder if the defendant, kept a thorough record of every sperm emission made throughout his life.
Well unless the defendant attempted to contact every single one night stand to determine if a child resulted in those unions, he has no parental claim over this child whatsoever. Why now? Why this sperm?
And for that matter, any masturbatory emissions, where the sperm is clearly not seeking an egg, could be termed reckless abandonment.