Best First キッス Ever!!

After watching episode 5x15, that episode have many Brucas（ブルック＆ルーカス） moments, i noticed chemistry in some feelings being there between brooke and Lucas.
The first time to notice it was when Lucas helped Brooke put Angie's シート, 座席 in the car, and then right after suggesting to come with Brooke to Angie's open ハート, 心 surgery. *aw*
Then at almost the very end of the episode, Brooke goes to Lucas' house to settle down Angie. (She could have gone somewhere else u kno)
And then closer to the end of the episode, Brooke was about to leave Lucas' house to at least let him get any sleep at all. But Lucas says,"Stay,...