There's a cliché about lesbian women taking forever in bed to pleasure each other when dating, sometimes all day, compared to men taking 5 minutes of piv to cum and thus leaving women unsatisfied.

I'm a heterosexual man though, so take that knowledge with a grain of salt lol.

Unlike men there is no erection that needs to be maintained for continuous "sex" to take place. Now some people will argue that foreplay and aftercare count towards total time taken to boink, but no matter how you slice it there is a bit of a running joke that some lesbians can sorta just have sex all day.