@Mr_Silence
Although my official headcanon states that she came from a really poor family growing up in Fetlockholm (Yeah, she be Swedish. Why else would she be so sexy?), so she indulged in all kinds of things to make her happy, including sex - not only an expert at it, but also a renowned sex-positive feminist.
But then after the Academy, the Gala, the tornado and the Best Young Flyer Competition, Spitfire realized that only thing that would ever satisfy her: love.
@Zaedrin
That could work. Still I prefer my head canon of her being a career mare who has realised that the biological clock is ticking, and is looking for a suitable sire.
Possible head canon: Spitfire is very promiscuous, but one of the big reasons why is because she’s almost completely infertile and really wants to have a foal.
Sometimes I think there must be something wrong with me for liking pony porn. Then I see artwork like this and I realize THAT I HAVE NO FUCKING REGRETS. Faved, saved, etc.