There are not many Flame Prince and Marceline fanfics here so I'll give it a try. I'll update my other story sometime next week; maybe end it early. I'm trying here, so please tell me what you think of this experimental writing style.
My name is Marceline Abadeer and I am 1004 years old. I am the Vampire Queen and sole ruler of the Night O'sphere. I met this 15 year old prince, and he was destined to become the next Flame King. His name was Flame Prince and we meet every night at the borders of his kingdom and mine at precisely 3:00 a.m.
We first began our love when he to fight me for my crown and then we have gotten closer every since. Our body temperatures prevent us from physically hurting each other. After three months of hiding their love, they came out to both of their kingdoms. This caused a treaty a mutual economic trading system between the two.
Everything was perfect; we could travel to each others kingdom, work together, make out in his office, etc. But he wanted to go to tier 15, but I wasn't ready. Not yet though. We waited and waited and waited until he was at 18, which is when he proposed to me. Three years for marriage. It was beautiful and later that night, well, sparks and other things flew.