Responses
Lol no. If you want to know their position look at how the pair name is put on the title of the doujin. Its Seme x Uke, so in gusari djs its always Iwaizumi x Oikawa, so yeah, Oikawa is the uke. BTW, in that scene Oikawa is actually riding Iwaizumi's dick, hence why he got a pain expression on his face lol
I did not ship this couple in the actual series (even though Oikawa is my favourite character, at most I feel like they just have an unbreakable friendship bond) but now I am obsessed with this pairing thanks entirely to this one doujinka