/lit/ - Literature

For anyone who read the Grishaverse trilogy (yeah I know, YA etc etc), I've been looking into the netflix adaptation to figure out if it's worth watching, and while reading about the differences with the books I came up with several different sources saying Mal had sex with Zoya, and also several other girls in the past.
Now I recall distinctly that when he tells Alina about his feelings for her she asks him about his previous experiences with the opposite sex, and he replies he had never been with anyone, not even Zoya who had tried to hook up with him at the beginning of the first book. Did I imagine all of that, or was that conversation in the books? Sorry if it's a silly question but it's been bothering me all day and if possible I want to avoid sifting through the books to find that out, because I don't even remember in which book it supposedly happened.