Since war wasn't a factor, they didn't have kids until Regulus was 29. This is an alternate universe where Tom doesn't exist, so Jamie & Regulus are married, and Regulus gives birth to their triplets together (like my other stories) but they were able to raise them instead of having to pretend to be dead for nearly 20 years.
Draco Malfoy/Theodore Nott/Harry Potter.Sirius Black/James Potter/Severus Snape.
Regulus Black/Sirius Black/Remus Lupin/Harry Potter.Regulus Black/Draco Malfoy/Harry Potter.Regulus Black/Sirius Black/Harry Potter.Draco Malfoy/Harry Potter/Severus Snape.Regulus Black/Harry Potter/Severus Snape.Regulus Black/Sirius Black/Remus Lupin/James Potter.