Rimuru Tempest is a guy not a girl.
Is Rimuru human form a girl?
Mimicry: Human There are no visible sex characteristics; however, he is often mistaken for a young girl due to the fact that the original form belonged to Shizue Izawa. But when he wears the anti-magic mask he kept as a memento from Shizu, his speech pattern can also make him seem like a prepubescent boy to others.
What is Rimuru Tempest gender?
Technically Rimuru is genderless, but identifies himself as male (due to his previous life)
Does Princess Shion like Naruto?
After her adventure with Naruto, she changed for the better, becoming more open and kind, and even developing romantic feelings for him. Her love for Naruto went so far, that she asked him to stay and have a child with her.