The law struggles to keep up with the revolution:

A sperm donor has been ordered to pay child support for the biological daughter he fathered to a lesbian couple who found him via Craigslist.

Angela Bauer, 40, and partner Jennifer Schreiner, 34, placed an ad on the site three years ago for a donor which was answered by William Marotta.

‘We are foster and adoptive parents and now we desire to share a pregnancy and birth together,’ Bauer wrote in the online posting.

Mr Marotta provided sperm which was used for artificial insemination by Ms Schreiner. In return, he gave up parental rights including financial duties for the child.

That wasn’t the end of the story for this skeezy bunch. The lesbian couple broke up in 2010, and the one listed on the child’s birth certificate as the sole custodian is now trying to get welfare benefits for the child. Lo:

The legal agreement that the three made in 2009 was deemed invalid by Kansas state because they did not use a certified doctor for the insemination.

So now Mr. Test Tube Babydaddy is going to have to pay child support. One of the lesbians — the babymama in the case at issue — has apparently decided that she’d rather be with a man, so this is who she walked out on:

Ms Bauer and Ms Schreiner had been together for eight years and adopted eight children. They ended their relationship in 2010 but continue to co-parent their sons and daughters who range from three months to 25 years old. 

Eight children! What a freaking mess.