In fact, one of the first films to be screened for the public debuted in 1896 and was called The Kiss.
The plot is a bit.
Far from just depicting two characters or more doing it, a love scene should progress the story in some way, or tell the audience something new that they didn't know about a character before.
Painter pants and lacy black slips? It had to be truthful.
Boy meets girl after swiping right on a dating app, they meet up, they have hot steamy sex, they decide to give their relationship a shot, they delete their apps, and call it a day.
While not technically a sex scene in that neither of the characters makes physical contact, this exchange from Bent is charged with desire.
Judice Candice Coke quickly becomes enamored with a wealthy entrepreneur Robbie Jones who unleashes a whole new side of her.
If you're familiar with this movie, you probably know it ends with Divine picking up real dog poop off the ground and eating it.