A double fire sign couple can be, well, explosive to say the least, but that doesn't necessarily mean regular bickering and fighting (though arguments can definitely get heated). These two have the potential to get along really well, and that same passion can translate over to their sex lives as well. "This duo is full of fun: They both share a high energy and craving for adventure," wrote astrologer Brianne Hogan in her book, Friendship Signs: Your Perfect Match(es) Are in the Stars. "From hitting the gym together to planning the next vacation, they're always up for a good time and like to keep busy. Basically, they're best buddies."

Both Aries and Sagittarius are go-getter signs. And although they're confident, neither of them has a Leo-like ego that could complicate their dynamic. As friends who become lovers, an Aries will know to give a Sag their space every now and then. And likewise, a Sag will know to pick their battles and let an Aries take charge.

When these breezy air signs couple up, it's a whirlwind, but also a whole lot of fun. Air signs are always full of ideas, and a Libra-Gemini duo probably already spends their time talking, talking, talking about all their ideas. That being said, when a Libra and Gemini go from friends to lovers, these two will have already made sure they're on the same page. "This is an easy connection that feels meant to be," Hogan wrote.

Both Libras and Geminis are very sociable, and can be the life of the party in their own ways. Libra's coolness and wit and Gemini's eyes-on-me attitude makes them a fun AF couple to hang out with, and fortunately, Hogan says, "Each understands the other's need for more friends and experiences, [so] they seldom get jealous or feel left out."

Two water signs in love is bound to be a dramatic, intense affair, but of course, not necessarily in a bad way. Water signs have a reputation for being deeply sensitive, so they'll bond over getting called "over-emotional." That being said, that sensitivity will also give them an intuitive understanding of each other.

Still, there's enough nuance between a Pisces personality and Scorpio one that allows each of them to bring something fresh to the table. "Scorpio's strength and decisiveness are a great match for the dreamy and indecisive Pisces," Hogan says. "While Pisces' creativity inspires Scorpio." Especially from a friends-to-lovers standpoint, a Scorpio-Pisces couple will be on the same page spiritually and philosophically, and will support each other in their artistic endeavors.

And last but not least, there's this double earth sign couple. In general, earth signs crave practicality. A pair of earth sign friends might be the first, out of all the elements, to see the benefits of dating one of their friends (for all the above aforementioned reasons). In order to make their friendship, (and later, their romance) work, they'll almost always get down to brass tacks first.

Earth signs will ask the hard questions about their partner's ambitions and intentions. Once they realize they have similar life goals and work ethics, it's a done deal. "Natural allies, these two feel very at home with each other," Hogan says. There's a softness to these two earth signs that isn't always present with Virgos, which is why Caps and Taureans are a smoother fit.

"They understand each other. Capricorn especially appreciates Taurus' loyalty and tenderness, while Taurus admires Capricorn's dependability and smart sense of humor," Hogan says. "From staying at home and watching movies to hitting up the newest restaurant, Capricorn and Taurus love spending time together no matter what they're doing."

If you're crushing on a friend and their sun or Venus sign is a different element from yours, that doesn't mean you shouldn't make a move! It's just helpful to keep in mind that people in shared-element relationships will likely get along just fabulously. Overall, cheers to romantic relationships laid on solid platonic — and astrological — foundations.