Theory

Ok, so I don't wanna discount the pink haired concubine just yet. Thus, I propose a theory: after Shuraka was scared to hurt Tei bc of the bleeding, Shuraka reached out to the only reliable bottom he knew. Then there was a purely platonic sex ed lession on the importance of lubrication - in this case scented oils - which is why Shuraka then smelled like perfume afterwards. The pink haired boy just smells like that cuz, ya know, he prolly gets it on... with other ppl than Shuraka ofc. If there is gonna be a jealousy plot instigated by pink hair cua of that, then he a pos, but alas, everyone can still be friends, ye? (=・ω・=)