@bastek66 He is never going to make a move, he actively has lewd delusions of her, but he still wont make a move, thats why every doujin of this series is NTR.
@bastek66 yeah but Koichi had the excuse of being mentally castrated by the gods so he would never have sexual desires, which is why he never got a GF or made a move on the girls. PS: Belldandy knew all along and was happy with the arrangement.