“I genuinely believed that if two people kissed their tongues would get stuck together.”
I decided to round up some of the best answers:
1.
“That it lasts for hours (‘all night long’ is a drastically misleading expression).”

u/Right-Ad8261
3.
“My first gf made me think women have an easy time reaching orgasm.
Boy, was I wrong.”

u/toamnacri
“Even with the same partner, this can vary wildly.
Sometimes my wife has a hard time, other times it’s very easy for her.
Medication, mental health, stress levels, as well as other factors, can greatly affect this.”

u/shadowgnome396
4.
“That men can get boners easily and all the time.
The first time I experienced a guy who had trouble getting an erection I was so confused.”

Really affected my confidence and willingness to go out and date."
u/chanarang
6. u/Both_Plate7143
7.
“That it’s supposed to be spontaneous, passionate and perfect ‘if the feelings are right’.

u/Ruggiard
9.
“you’re able to only finish once in your life.
u/ShadowEllipse
10.

“That women don’t enjoy sex.
“Didnt believe it for long, but our Bible study leader told us that penises vibrated.”
u/Batticon
12.
“Itll always hurt a bit at first when he puts it in.
Thats not normal and I should have pushed for more lube and foreplay.”
u/penndelnj
13. u/FeeBiscuit
14.
“That sex in the shower is hot and steamy.
In reality, its awkward and water is not a lubricant.”
H/T tou/swarnava-duttaand AskReddit for having this discussion!
Note: All submissions have been edited for length and/or clarity.
Additional thumbnail credits: Netflix / NBC / Getty Images