Considering that Aries is a fire sign, it makes sense that water signs would be not a good match. Of the three water signs, Cancer is a particularly bad match, Stellas says. There’s a lot of aggressive tension between the two signs. Meanwhile, Piscean energy is a little too chill for Aries, though a short fling can be fun. Scorpio’s fearlessness when it comes to sex means that they could have amazingly creative (and maybe kinky) sex with Aries, but long-lasting relationships aren’t in the stars. “They both have a great deal of power, but express it in different ways,” Stellas explains. “Aries has this kind of childlike glee, and Scorpio has this brooding intensity. Between the sheets, it’s intense, but it usually doesn’t last for a long time, romance-wise.”