lots of himejoshis i follow on twitter love bokuyaba saying its yuri, and i wasn't completely sold on that argument despite being a himejoshi myself and liking the series, but i have to admit this was yuri as hell
editing in my stance since the class is confused:
ok, so there are three points in my argument, starting off broad and vague then going to specific
1) where a lot of straight romantic comedy and drama works are defined by a progression of courtship, a majority of yuri works are more interested in the exploration of relationships that already exist, whether it be a steady couple, a pair engaged in physical intemacy despite not being official, or long term friends that can more closely share the same space than traditional boy and girl friendship would be able to allow. of course a lot of romcoms stick around after the main pair confesses (ie bokuyaba) so this is why this is a broad condition
2) yuri works consistently focus on how social forces constrain or set norms for couples. the relationship has to be negotiated to fit into a wider world because it is deemed different or bad. bokuyaba shares this as anna and kyou are right now working around how anna has to fit as a "pure actress," without scandal
3) lipstick is a traditionally feminine object. the lipstick is applied to kyoutaro, a feminizing act. the lipstick remains the focus of the scene as the kiss is also framed as a way to apply the lipstick to anna.
q.e.d. regardles of author intent, at this moment bokuyaba falls under the framing, context and content of a yuri work
