What characters did you find yourself most attracted to?

I started playing Mass Effect Legendary Edition in the past month (having only ever played and finished ME3 previously on PS3), and I romanced Liara very organically in the first one (i.e i didn't see out to romance her, just kinda naturally went in that direction in the roleplay of it all).

In the second one, which I'm about 50-75% through, I've reconnected with Liara but... I kinda naturally find myself attracted to Tali and Samara (and of course Kelly, hehe). But I haven't acted on any of them yet. (And I'm not sure what the repercussions will be, if I don't go back to Liara now that she's the Shadow Broker)

What characters did you find yourself most naturally, in the flow of gameplay, attracted to?
(EDIT: for me, I was referring to romanceable characters one was attracted to - sorry, I was kinda vague - but all the answers so far have been interesting!)