Sexual acts between two young ladies. They may or may not be in a relationship, and they may or may not even be lesbian or bisexual or even into girls. It doesn't matter. The hottest kind of sex is girlsex.
"Michi...I had girlsex last night!"
A sexual act performed by a man and woman where 1) the man performs cunnilingus on the woman, 2) the woman performs fellatio on the man, and finally 3) the man inhales marijuana smoke and exhales it into the woman's vaginal cavity.
I couldn't find a condom, so I grabbed my stash of dank-ass, cash-ass dro and we had girlsex.