any yaoi with surrogate moms?

[ladyburningrose]

I see a recurring pattern of yaoi with the HUGE Japanese problem of an heir or "carrying on the bloodline". I've never seen a story that uses artificial insemination and a surrogate mother, instead of a marriage partner, for that purpose only. Has there ever been such a story?

I've never seen one, so I wondered if it exists. Thanks for any input in advance!