^^^ Yes and yes, on two separate occasions already in fact. Though Yui got her her and Momo beat in terms of having the longest running fantasy scene to date.
All-in-all a very good chapter, not only for the Yui scenes, but many of the others were reasonably featured as well. Though it doesn't really make much sense why Momo's hair would grow in length after being chibi-fied like that. But hey, such overwhelming cuteness doesn't need to be bound by scientific logic. And poor Yui has less to worry about Rito as opposed to every other person within that crossroad vicinity getting a good eyeful of her privates.