I'm curious to know what exactly we've seen in this update to assume there would be some threesome stuff?
If it's Yuki-the MC-Carol-some then I wouldn't even expect it since the MC's just using this info to take advantage of it for finding a closer approach to Yuki. Besides, something tells me Carol wouldn't go for it. Moreover, it's not yet known how Yuki would react to the fact Carol and the MC are a loving couple since from almost the beginnig of the whole story. But again, it's only my purely personal opinion regarding all the details provided in the story. There's always a chance
And if it's Roxy-the MC-Nikki-some then it would be quite possible though. Too many hints