Quentin Tarantino says shirtless Brad Pitt is like gay porn.

Brad Pitt - Once Upon a Time in Hollywood (Image: Andrew Cooper/Sony/Columbia Pictures)

Remember when Brad Pitt took off his shirt in Once Upon a Time in Hollywood? Quentin Tarantino knows it was a gift.

The Oscar-winning filmmaker was a guest this week on the latest episode of Amy Schumer’s 3 Girls, 1 Keith podcast…