Moonwater (remus and regulus’ friendship) did not come from them dating sirius and james.

I think it started from remus and lily being best friends and same with regulus and pandora, so when lily and pandora start dating, the four of them are inevitably drawn together a lot more. They bond over their best friends ditching them for each other and are just like welp i guess it’s just us now.

I also stand by moonwater study sessions in the library. But with lily and panda too, they are a lil friend group ahhh 😭 too cute.