They didn't end up doing a threesome, I was honestly disappointed. The cover is misleading. At the end of the panel, Sehan said "Maybe we'll do it together next time" ~ ┑( ̄Д  ̄)┍
They did do it
Is there a new chapter?
https://roadsteam.net/manga/bi-mat-ban-be/chap-6/
They didn't end up doing a threesome, I was honestly disappointed. The cover is misleading. At the end of the panel, Sehan said "Maybe we'll do it together next time" ~ ┑( ̄Д  ̄)┍