Spike is far too young for her, of course.
That means they'll have to keep it their sweet little secret.

Rarity's home makes a perfect love nest,
a wonderful place for a few hours of passionate kisses and gentle caresses in the dark.

Ever since the events of his birthday, Spike has feared and suppressed his species' natural behavior. However, when one chains the beast too long, natural tendencies tend to break loose. Spike, along with his friends, must discover a way for Spike to control his natural behavior and continue to live alongside the ones he loves. But is this possible?

Which is more powerful: nature or nurture?

Spike has a secret...well, its not really one since everypony knows it. However, the secret that they all know isn't the secret Spike hopes no one will find out about. No, this secret goes deeper; A secret that has been kept hidden behind many masks and white lies. Its a secret that Spike is both blessed and cursed with, for with each passing day, he is reminded of that secret. So, the time has come...the day when one's resolve to hide a secret has fractured...

Twilight discovers more about herself and Spike than she could have imagined, once their relationship is pushed to its boundaries and things change for better and worse.

After Rarity falls for a new prince, Spike is infuriated for wasting five years of his life trying to please her. So Twilight, being the good friend she is, decides to calm him down as much as she can. However, she may have been a little too nice to him, because later that night Spike begins to have romantic dreams about her. At first they horrify him, but eventually he begins to like them. Then he finally begins to understand why he keeps having these dreams; he's beginning to fall in love with his best friend, but will she return his affection or leave him out in the cold like Rarity?

[Image is made by jenasu on Deviantart.]

Twilight Sparkle has been working herself into such a state of fatigue that Celestia has ordered her to take a five month vacation from her studies and has given Spike the assignment to ensure that Twilight relaxes. A lot can happen in five months.
This story, though labeled as number five, was actually the first MLP story I wrote. I greatly enjoyed writing it and I hope you enjoy it too.

"He truly loved her and knew she loved him just as much. The dragon gulped deeply as a fluttering sensation occupied his stomach. He didn't just love Twilight as a friend."

After finally giving up on Rarity, Spike realizes that the true mare of his dreams has been in his company for a lifetime, but is unsure if Twilight would ever consider him as more than a great friend and assistant. The only way he can find out is ask.

*Featured 2/20/2014, Thank you all so much!*

Cover Art: Hey,.. real' quick, before the intro starts.. by Frist44

Special thanks to all the readers who pointed out grammar and spelling errors. You're great proofreaders!

Out of curiosity, Spike creates a successful love potion. Unfortunately, the Mane 6 drink it and fall in love with him. Will Spike realize what is going on and cure his friends? Or will he use this to an advantage? Based on Spike el Casanova by EMVARE on Fanfiction.net

(Rated Teen just in case)

Spike has been spending a lot of time with Flitter, a local pony in town who is (at best) an acquaintance of the Mane 6. Rarity sees this and launches straight into action, enlisting Twilight Sparkle's aid in getting to the bottom of Flitter's intentions with her dear Spikey-Wikey.

Teen Rating for some suggestive passages.

Beautiful Cover Art by the generous Blackflash, and vectored/edited by the splendiferous CaioCoia!

EDIT: Featured 9/21/16! Thanks so much!
EDIT: Hit 4k views 10/7/16- Most successful story so far. I'm glad people enjoyed it!