I Won't Give Up

AU. Marceline decides that at her bands largest concert, with more than 150,000 people, she's going to serenade her girlfriend, Bonnibel, for their anniversary. Can she pull it off? Heck yeah, it's Marceline we're talking about here! Is fluff, but lots of smut near end.(nosebleeds) Oh well. Rated M for.. smexi scene at the end. One shot. Futa!Marceline just cause I felt like it :3