^ I don't blame you, it's was short, but it was also the first moment where I was like "Aaaw beneath all the Fate+yuri fanservice, there can still be some wholesome moments".
Too bad when most people think of Fate/kaleid they automatically associate it with "lolicon material"... There's some real yuri potential in there.

^I'm pretty sure their first real kiss (which is like the third in the anime) is pretty much the same in the manga (minus the fan service animated make-out session.) Same with the way the asks her to "take responsability" for now being her mana replenisher. The only time where she's embarrassed about anything.
I also remember that moment after defeating Bazett, they both fall dead-tired in the same bed, and Kuro turns bright red after making eye-contact with Illya. Even Illya is like "what's with that reaction?" and Kuro just goes full tsundere and leaves the room. In the anime they just fall asleep.

I always found adorable that despite being fine with "sexually harrassing" everybody, Kuro's embarassed (at first) only when it comes to Illya.

Spending everyday together with a least one "mana replenishing session" a week is certainly a way to grow closer intimately.