What even is sex? In this episode of Crash Course Sex Ed, we’ll discover that variation is the name of the game when it comes to sexuality. People differ in how they have sex, why they have sex, and how they define what sex means.

Do you know the difference between the vulva and vagina? In this episode of Crash Course Sex Ed, we shine a spotlight on the Vagina and Co., dispelling a long history of shame and mystery to actually understand our bodies.

Are penises as big of a deal as we think they are? In this episode of Crash Course Sex Ed, we break down the history, myths, and assumptions we’ve made about penises, from the “right” size to circumcision, and from erections to blue balls.

What does it mean to transition? In this episode of Crash Course Sex Ed, we’ll uncover the differences between sex and gender, and explore what it looks like when the gender assigned to a person doesn’t match who they really are.

Why do we like who we like? In this episode of Crash Course Sex Ed, we explore the many facets and variations of sexual orientation, and trace the history of homosexuality to the modern day LGBTQIA+ community.

Is virginity really a thing? In this episode of Crash Course Sex Ed, we’ll bust virginity myths and learn why women have traditionally faced stronger pressure to remain virgins. We’ll explore the ways social scripts guide what we think about sex—but aren’t the final word on how we live our lives.

Where there’s sex, there’s the possibility for STIs. In this episode of Crash Course Sex Ed, we unpack the most common sexually transmitted infections and how to prevent and treat them. Turns out, sexual responsibility is a lot easier than you think.

There are so many different types of contraception to choose from. So…where do you start? In this episode of Crash Course Sex Ed, we’ll uncover the complicated history of birth control and many of the options available today—plus, why we still don’t have a male pill.

Most sex ed tells you how not to get pregnant… but what if you want to? In this episode of Crash Course Sex Ed, we’ll traverse the complex journey of getting pregnant, being pregnant, and going through childbirth—with all the strange symptoms and fascinating science that entails.

Abortion is complicated. In this episode of Crash Course Sex Ed, we’ll cover what happens during abortions, why people get them, and what people actually think about the topic.

Consent seems as simple as “yes” or “no” — but is it? In this episode of Crash Course Sex Ed, we’ll explore how affirmative consent reframed the conversation, why context matters, and the importance of checking in with your partner — and yourself!

Like it or not, porn exists. In this episode of Crash Course Sex Ed, we unpack the pros and cons of pornography, its long and storied history, and how to engage with it critically and safely.

Why and how do we orgasm? In this episode of Crash Course Sex Ed, we’ll break down “the Big O”—its physical aspects, gendered expectations, and misconceptions. Plus, a fun cameo from a penis-camera.

If almost everybody masturbates, why can’t we talk about it? In this myth-busting episode of Crash Course Sex Ed, we’ll uncover the history of how masturbation became taboo, the person who made sex toys better for everyone, and the ways masturbation can actually be good for you.

What does it mean to be kinky? In our final episode of Crash Course Sex Ed, we’ll learn that some “unusual” sexual desires are actually pretty common. We’ll talk about the differences between kinks, fetishes, and paraphilias, and the subjective nature of what’s “normal.”