(I play someone for you, you play someone for me)

A= The younger sibling
B=The older sibling
C= A's partner/lover

Scenario:
A was always thought to be an only child by all their friends and were always shocked to look upon their older sibling (or one of if they have siblings). They didn't have that stereotypical love-hate relationship with their sibling, A actually loved B and almost always agreed with them. They could be a little protective when it came to boyfriends/girlfriends. A didn't mind it because those people always ended up being bad in the end. But A lived with B after a little miss hap with something else in their life. A was great full for this and was always helping around the house to thank them. They apparently got tired of it and brought it up to them. "Ok, little bro/sis/sib. I appreciate that you want to thank me for letting you stay but you don't have to act like a maid to me! My house is your house, you can mess it up sometimes when you live here!" "I can?" B nodded slightly to answer their question. "So... I can leave the dishes for a couple days? Or not immediately clean up cans and wrappers?" B nodded again in answer. "Yeah! I was expecting a more chaotic thinking but it's a start." B said, ruffling the shorter one's hair. "Now c'mon. Let's talk." A proceeded to tell B about their new lover, C , causing B to ask a loud of questions about them like usual and allowing A to answer those questions about C. Continue...