My daughter and my son, by different PRS donors, are both very happy to have met their donor siblings thanks to the DSR. It is fun to see these sibling groups (9 in one case, 2 in the other) share stories and compare physical and emotional traits. They are all interesting young adults that have a special bond with each other. I have enjoyed meeting the other moms, and in some cases have formed very close friendships. We should make up a term for "the mother of my kid's donor sibling" because it's a unique relationship! The kids get together with their siblings once or twice per year and have shared some holidays and milestones (like graduations). All of our lives have been enriched by our expanded definition of family, thanks to the DSR!!