I Heat Up, I Can’t Cool Down, My Head Is Spinning Round and Round
In Aries and Sagittarius we, of course, have two high-spirited, optimistic, rather adventurous star signs. This pair are, as you probably know, two fire signs. Mars rules Aries, and Mars is proactive, pioneering, and assertive. Jupiter, ruling Sagittarius, has an abundance of optimistic and intellectual energy and is seeking to find their way in life. So immediately, right off the bat, there is a lot that these two signs have in common with each other.

Adding to this, they are both sporty, outdoorsy people with a large appetite and a love for life. They are likely to come across each other in business or competitive activities. They are both star signs that don’t like to stand still; they believe in living for the day and making the most of life. This is why, once they become attracted to each other, they are likely to want to go through the phases quite quickly and experience the full pleasures of this relationship.
Now, Aries is a cardinal sign, Sagittarius is mutable. This is beneficial, as the Sagittarius has more of an ability to adapt, and this helps to create a sense of compromise in the relationship. However, because of the highly combustible, spontaneous nature of this pair — along with a lack of earth or fixed energy to bring things back down to basics — I feel that the chances of it being a long-lasting relationship are hampered. That is why this gets a 65% chance of being long-term.
Are these two soulmates? Possibly twin flames. They certainly can play a role in each other’s creative and personal development, and often in the more religious and philosophical facets of each other’s life as well, making this a relationship that can leave a significant mark on them both, even if it’s not a forever match.
Romantic Compatibility
Sagittarius certainly ticks the boxes of what Aries is looking for in a relationship. They provide both spontaneity and warmth, and there will certainly be numerous shared interests, which means that life around each other rarely has a dull moment.
When it comes to Sagittarius, Aries loves a partner in crime — someone who also likes to take a few risks and to live life to the max. This couple are certainly going to be attracting attention and will be noticed by other people, even as role models. However, when it comes to ‘behind closed doors’, what is going on in terms of romance?

They love each other’s openness and honesty, and Sagittarius is willing to adapt to the demands of Aries. They can achieve multiple things together, and they’ll be really proud of each other, and this bodes well for love. Aries seeks a partner, however, that is loving, attentive, and wants to be a team player and often, as the Aries mellow when they get older, the free-spirited Sagittarian nature doesn’t always help them to feel as secure and needed as they want to be.
Aries needs a lot of validation, and Sagittarius often assumes that Aries is doing just fine and thus doesn’t really give them the love, support, and encouragement they secretly crave. Sagittarius also needs a little bit of variety, and the danger is that as Aries slows down — one of the common shifts that occurs, because Aries do mature into people who enjoy family life and stability — they might want to slow down a bit before Sagittarius is really ready to. That means if they meet as a couple later in life, there can be a mismatch of needs.
While romance is exciting, stimulating, and very enjoyable, it can hit the wall after the initial flurry of excitement and butterflies are over. Sagittarius may have had multiple relationships prior to Aries, and Aries do have a slightly jealous, competitive side, so the specter of a number of exes in the past is something that often troubles Aries.
Sexual Compatibility
Aries is passionate, Sagittarius is curious, but when it comes to the bedroom, both lack a little bit of confidence. The bedroom can be the weak link in this relationship.
On the surface, one would imagine that both these signs would be eager, spontaneous, and expressive in the bedroom — and they are certainly willing to try a few new things. Early on in the relationship, they’ll be eager to test the waters sexually. But will it all go to plan?

There will always be nagging doubts in the mind of the Aries about how much they truly satisfy the Sagittarius, and things are never quite deep or intense enough to reassure Aries. On the other hand, Sagittarius are very emotionally vulnerable in the bedroom. They can react strongly to harsh criticism, and sometimes they are too willing to perceive things that aren’t really there.
So when it comes to the bedroom, both signs have to be totally honest with themselves about what is happening, as both can give in to fears and insecurities in this realm, meaning it’s a tricky one where they both don’t want to go. So sometimes sex becomes microwave sex, and thus not the most satisfying part of the relationship.
Friendship
This is a very rewarding relationship when it comes to friendship. These are people with similar temperaments and high energy. They are rarely bored together, and since both are kind of fidgety and looking for stimulation, the relationship rarely has a dull moment.
They can experience a youthful, joyous vibe together, and the friendship can involve humour, pranks, and some risqué behavior. Both love their social life, and there’s no danger of these two running out of energy.

In terms of the friendship, even though they’re both fire signs, there’s less of the competitiveness because they will tend to have very different abilities deep down, meaning they don’t compete directly with each other.
One thing, however, that can undermine the friendship is that although Sagittarius enjoys honesty, they are a little more evasive, and sometimes they embellish. That can leave Aries feeling led down the garden path. The Sagittarius has to make sure they always make good on promises, because Aries is going to notice and be critical of the times they don’t, and they will take that quite seriously.
Marriage and Long-Term Potential
These two signs complement and support each other. They have many traits in common, but where they are different is that Sagittarius is able to see the bigger picture and sometimes take a wiser, more mindful approach, whereas Aries are more effective in the heat of the moment and in straightforward conflict situations.
They’re always going to forgive each other, and that is where the relationship can have legs — simply because they don’t let the challenges get them down. They have a positive approach, they bounce back, and they’re always ready to live to fight another day.

Where the marriage has its weak points is that Sagittarius thrives with a communicative, vivacious, quirky partner — someone who can be a little bit of a tease and has an unpredictable side. Sagittarius loves these traits; they always want to be on the hunt and know that there’s another chapter to be read in the relationship
Aries has to be careful of laying all their cards on the table and being too open, because that can actually make Sagittarius less interested in the relationship. Aries has to know how to hold something back and maintain the element of surprise. There’s no way either can rest on their laurels in this relationship. If one starts to input less energy, it can go downhill fast.
Aries will always have nagging doubts about Sagittarius. They never fully trust; they are always wondering if Sagittarius thinks the grass is greener on the other side. That lack of trust can be quite detrimental to the relationship. So both of them have to work really hard to give the other creative attention, to restore trust, and to keep the relationship interesting intellectually to keep it going.
Strengths and Challenges
The Aries and Sagittarius pair are always innovating and looking for new challenges, and that keeps the relationship dynamic.
This combination of star signs can get very animated and so, although there can be arguments, that is really part and parcel of the positives of this relationship, because arguments — like storms — clear the air. Sometimes the relationship is even better after a heated exchange, so there’s nothing to fear from temper in this relationship.

This relationship can, however, lack emotional intensity, and that leads to a lack of cohesion sexually. In the bedroom, they really need to work harder, devoting time to addressing their fears when it comes to dropping their guard and totally immersing themselves in each other sexually.
This couple are likely to have many mutual interests, and even when things are not going so well emotionally, there are always enough distractions to keep them together and interested in maintaining the relationship.
Both have to work on exclusivity. They should never air their dirty laundry in public, because family values are important to both of them. If either of them speaks about issues to other people or friends, that can really damage the relationship.
Final Verdict
Although I’m giving this a 65% chance of survival, there’s no reason this can’t be a very happy union between two positive, vibrant individuals who support and encourage each other. However, where I feel there’s a mismatch is in terms of the sexual and emotional side, where sometimes the relationship is too filled with activities that give instant gratification, and there’s not enough focus on long-term bonding.
This couple may be complacent. In fact, in the beginning stages, the relationship may proceed so well that they don’t face some of the challenges of other partnerships. Therefore, they don’t learn some of the resilience and the problem-solving abilities that other couples will learn.

Communication is so important to Sagittarius, but not as important to Aries. Over time, Aries will have to learn how to keep up the curiosity of the Sagittarian, and the Sagittarian has to learn to show Aries a depth of love and feeling beyond just platitudes and superficial compliments. Sagittarius must follow through on promises, and Aries must learn to hold something back and keep the Sagittarius in the hunt for their love.
There is a potential that they lose interest in each other. The fire that burns so bright can burn out. They can both burn each other out through constant activity and socializing, leaving too little time to work on family and emotional life — and that’s when the relationship can flounder.
As always, there are other key factors in the horoscope relationship chart. For example, synastry between the respective Moon and Ascendant signs, which are based on the day, time, and place of birth, will have a bearing on the relationship outcome. The interaction between their Venus and Mars will tell us a lot more about sexual compatibility and attraction.
Second decan Aries works well with all Sagittarius decans. Third decan Sagittarius works well with first and third decan Aries.


