Sexual arousal

Sexual arousal is the feeling humans and animals get when they are ready to have sexual intercourse. Someone who can only get sexually aroused after forming an emotional bond with someone is called a demisexual.
Sexual arousal in people.
When people become sexually aroused, their bodies change in certain ways.
Animals.
Animal sexuality is not very well understood today, but scientists are sure that animals do get sexually aroused without having sexual intercourse. Dolphins and Bonobos both use sex as a "social tool to strengthen and maintain bonds."