Hey there, Yaoiking, you're getting a lot of love from doujinshis! :D
I was binge watching YOI (for like the gazillionth time) this past weekend, and it hit me that within the canon of the anime, it is very likely for Yuuri to be the seme because after all, it was him whom seduced Viktor with his super manly seductive "Eros"! So maybe they are both sekes, with yuuri playing the uke when he's sober and the seme when he's drunk ;D
Yaaaa! I am love em djs ╮(￣▽￣)╭
Yaaaaaa..... Seme Yuri? On uke Victor ! Lol I love it the most bc ya he did seduce him with the erotic body movements and eros but if victors seme I don't mined ╮(￣▽￣)╭
Yaaaaaasss Yuri seme! And Victor uke! I loved! It! So good want more(╯°Д °)╯╧╧