>>52728885Why not? Pokemon are consistently portrayed as sentient and sapient beings capable of human level cognition, understanding of spoken speech, experiencing human emotions (including romantic attraction towards humans) and, on a multitude of occasions, even proper communication, either with spoken words, telepathy or other means. Not only that, at least one clear instance of mutual attraction between a pokemon (Froslass) and human male is recorded, resulting in long-lasting marriage and, quite possibly, offspring.
It's only natural to be attracted to another sapient being as a result of longstanding mutual partnership.