You asked for it
Himegoto Asobi vol. 1 omake: The omake is the morning after their date, and they go to McDonald’s for breakfast XD Tanihara comments that Saji looks really out of place, and Saji then asks what kind of person Tanihara takes him for, precisely, and reminds Tanihara that he used to come to fast food restaurants quite a lot when he was younger, as well as arcades and karaoke. Tanihara’s kind of shocked, because the image doesn’t fit him at all (he tries to imagine Saji in school uniforms and none of them quite fit his usual stern mien XD)
Himegoto Asobi act 6:

(sorry for the crappy pic XD snapped it with my cellphone!)
Opens with Saji in Tanihara’s shop, giving him a small gift as thanks for treating him to the crab last chapter. Tanihara’s still thinking about catching Saji kissing the other man before, but neither one brings it up. Tanihara invites him up for tea, but Saji’s busy—and so Tanihara instead suggests they go out again, but Saji again says he’s going to be busy for the foreseeable future. Tanihara asks what the ‘foreseeable future’ is, and there’s a long awkward pause…and Tanihara realizes that this is Saji’s way of suggesting they not see each other anymore, and wonders why he hadn’t thought this might happen before.
Before he can think too long on it, though, Saji leans over the counter and kisses him, vowing seriously, “I swear I’ll call you,” before taking his leave. Tanihara watches him go, and ponders darkly, You say that…with the taste of someone else’s cigarettes on your lips? before chiding himself for reacting like a petty, jealous girlfriend XD;
He heads to the supermarket later to buy meet for dinner—and who should he run into but the guy he caught Saji kissing. They strike up an awkward conversation, as the guy patently has no clue who Tanihara is, and wind up having to share an umbrella together when a downpour starts and the guy has nothing to take shelter under. They walk to the clinic together “because we’re going the same way”, and the guy offers tea at Saji’s house as thanks for taking him there under the umbrella. Unable to refuse without seeming suspicious, Tanihara obliges. They’re having very awkward tea when a short while later, Saji comes in, saying, “Yukihisa—did you manage to get the shopping done?” before being shocked to see Tanihara there as well.
They strike up a conversation, mostly led by Yukihisa who of course has no knowledge of their relationship, and Tanihara watches them interact, a bit miffed that the two talk in such a frank manner with one another (Saji uses very polite language with Tanihara, but he and Yukihisa talk like old friends). Tanihara eventually takes his leave, unable to bear the feeling that he’s the ‘Other Man’, and Saji offers to walk him home. Tanihara tells him not to worry at first, but Saji insists. As they leave, he sees Yukihisa light a cigarette; it’s the same flavor he tasted on Saji’s lips before.
As they walk home, Saji presses for how they really met, and Tanihara insists it was just as Yukihisa said—that they ran into one another at the grocery store. He comments that they seem awfully close, trying to remain casual, and Saji says that some things had happened, and he’s just staying at Saji’s place for a while. Tanihara supposes this is what Saji had meant about being busy for the foreseeable future, and then hazards, “…So, are you two living together?” (in the sense of being lovers).
Saji’s surprised and confused, and Tanihara confesses that he caught them kissing the other day. Saji is contrite, but maintains that they’re not living together. They’ve known each other for a long time, and Yukihisa manages to get into a lot of trouble, and Saji’s just helping him out.
They finally arrive at Tanihara’s house, and Saji bids him farewell before taking his leave, but as he watches Saji walk away in the rain, Tanihara acts on a sudden overwhelming urge and chases him down, grabbing him and kissing him—a rather passionate one, at that. When they part, Tanihara’s ashamed of his rash action and apologizes, calling it ‘thanks’ for walking him home. Saji’s a bit surprised but gracious—and confused as well, because Tanihara is blushing madly and not from the kiss. They part ways, and Tanihara takes shelter in his house, berating himself for doing something like that right in front of his own place.
His final thoughts closing the chapter are: I almost asked him…”Me or him—who do you prefer?” What the hell is wrong with me…?