If the contents of one's head were compared to a volcano, Aleksander's head would have already exploded by the intensity of Elys' kiss, his brain scattered all over their shared chambers. That would have caused a lot of mess, but it was a good thing his head was not a volcano at all.
It was not like he never kissed anyone before. Hell, he could never even count how many poor blood servants have tried to seduce him before. He was supposed to be experienced, but all he could do now was to turn into stone, unable to move with the shock a single kiss brought.
He wasn't someone pure. He had indulged himself in too many sinful things in a bid to drown himself, trying to forget the pain and self-pity he felt in himself over the years his father disregarded his entire existence.