When Megumi gives Keiichi two hotel vouchers by the beach, he and Belldandy go for some time alone.  What really happens is Urd and Skuld come along also.  Urd's purpose there is to advance their relationship by getting Keiichi to tell Belldandy his feeling for her.  That is the last thing that Skuld wants though and she does all in her power to stop it.