Totally off on my predictions... I don't quite get why Tsukasa says they are not the same when in reality, they are. Yui just hadn't realized it then. Feel bad for the third girl seeing as Yui seems to be asexual. Though since she's a little late in her feelings department, she might just have a sexual awakening later on. Of course her sexual proclivities will be separate from her kinbaku and her being Tsukasa's pet. Tsukasa in an earlier chapter said sex was something that made her feel good so there's some chance of her having sexual desires I guess.
Blonde makes this 'Yuri' but the relationship between Tsu and Yu just feels 'Shoujo - Ai' to me. Over all, the story had potential for an interesting yuri but I suppose keeping the kink play completely non-sexual while being in a relationship would have been difficult. The message of the story just reads kinks help people relax and don't have to lead to sex.
Blonde makes this 'Yuri' but the relationship between Tsu and Yu just feels 'Shoujo - Ai' to me. Over all, the story had potential for an interesting yuri but I suppose keeping the kink play completely non-sexual while being in a relationship would have been difficult. The message of the story just reads kinks help people relax and don't have to lead to sex.