Are bisexual people more promiscuous than other people?

Bisexuality describes who you are attracted to, not how often you have sex.

No. Just because you are attracted to both sexes does not mean that your sexual appetites are out of control. Bi people are a diverse group with many different preferred relationship models. Some of us are monogamous. Some of us are polyamorous. Some of us are even celibate. Bi people aren’t all the same. What we have in common is attraction to both sexes. As with heterosexuality and homosexuality, bisexuality refers to our orientation. It does not imply anything about our preferred relationship models.