Sure, you put sex in the title of an article and get instant clicks – but, in this case, it’s totally worth it. Because, ladies, your body is even trippier than you know, and these seven facts about what happens when you’re enjoying yourself sexually are all the proof you need.

We all know sex feels amazing – it kind of has to, so that we’ll keep procreating and all – but do you know why? I’m sure you know some of the basics: you get lubricated, and your vagina expands. But it’s actually so much more than that. Your body goes through a whole range of changes during sex.

Scientists divide the process into four different stages: arousal, plateau, orgasm, and resolution. Each stage comes with its own set of changes, some of them major. So that heady, post-sex glow isn’t in your head – you’ve actually given your body and your hormones a massive workout. Nice!

Let’s break this down.

#7. Your body basically drugs you.

Like, a lot.

Adrenaline, dopamine, and oxytocin are all released during sex. This explains why it makes you feel amped up, happy, and attached to your partner, as oxytocin is very important in pair bonding.

Rita Watson, MPH and Associate Fellow at Yale’s Ezra Stiles College, writes in Psychology Today that “naturally occurring hormone oxytocin and love are intimately related.” Dr David Moore explains in New York Daily News that the powerful release of dopamine and other hormones can keep us craving more from that person, a feeling very similar to love.

Plus, the adrenaline causes your heart rate to rise, according to The Daily Mail. So sex is basically like a Jägerbomb and a hug all in one.

#6. Your vulva becomes engorged.

I knew there was a lot of blood rushing around down there, helping out with lubrication, but the National Health Service explains how your vulva actually becomes engorged and firm from all of that blood flow.

#5. Your breasts can get a lot bigger.

Another thing that gets bigger is your boobs. They end up swelling during sex, sometimes up to 25 percent, says Britain’s National Health Service.

That bears repeating: 25 percent more boob!

That’s a lot of boob!

#4. Your blood pressure rises.

Now that I know all this blood is flowing around, it’s a little less surprising to find out that your blood pressure rises during sex, along with your pulse, and your rate of breathing. Dilating blood vessels are also responsible for that red, flushed look you can get during sex, according to Men’s Health.

So hooking up is basically a spin class – just one that feels really, really good.

Unlike spin class.

#3. Your clitoris hides.

Not right away, obviously.

At first the blood flow makes it more engorged, but, as you approach climax, it actually “pulls back against the pubic bone and seems to disappear,” according to the National Health Service website.

Your clitoris apparently likes a bit of hide and seek during sex.

#2. Your body tries to trap sperm.

So you know those sort of spasms that happen when you orgasm? They happen at about 0.8 seconds apart, and you can have just a few or a lot, depending on the strength of your orgasm.

Well, according to LiveStrong.com, one of the side effects of this spasm is that (in theory) your vagina prevents semen from escaping and moves it up inside you to increase your chances of fertilization.

#1. Your vagina bounces back like a rubber band.

This is crazy: your vagina just doubled in size, had all sorts of blood flow in and engorge your lips, and then, during resolution, it all goes back to normal pretty damn quick. All of a sudden, it’s tight enough that it can keep a tampon from falling out. Even though it just fit a penis.

Bodies are incredible!

Did you learn a few things about your body during sex? I hope so!

(h/t: Bustle)

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You rock! Thanks for reading!