Is it Possible to Build a Stable Relationship from one that Starts out Sexually Based?

The question you're raising is more about how a relationship begins. You are building a foundation. What is the primary material you need for a solid foundation, one that leads to stability? (By stability, I'm assuming you would include emotional fulfillment and nourishment.) Let's contrast the differences between a sexually based relationship and one that is truly intimate. "Sexually- based" -- what comes to mind is it's hot, intense, exciting, primitive desire, peaking together in orgasm's bliss; they may even be in love... Sounds pretty good. However one obvious cause for concern is, how long will it stay that way? Where does it go from there...When they can't depend on sex to come together. What will they have to keep them together?

In contrast to a foundation whose first bricks is a rapport, and from that rapport, an intimate-based relationship is built, one in which intimacy is established and sustained. Whenever there is a problem, they talk it through.

That being said, getting back to your question, when it comes to relationships, which are "joint-effort" creations; they're an art form. Anything is possible! What you are going to want to do is for the two of you to agree to shift the focus to your ability to communicate and be intimate. That way, you'll be able to solidify what would otherwise be a flimsy foundation.

And then, if sexual chemistry and satisfaction are added into the mix. There is untold potential. Sex, if it were mediocre to begin could suddenly become exciting and intense.

Would you prefer a sexually-based relationship? Or, one in which intimacy is established first?

After answering this question, look to seize relationship opportunities, act in a way that is consistent with your answer, assess the situation.