In-Grave-ing Your Name On My Heart

When Gumball comes to Marshall with something that has been eating away at him, can Marshall help him ever truly understand? Can their relationship stand the test of time? How long will it take for them to see that things just might be too different for them to be together? (Also contains smut... and boy love. If you don't like it, don't click it.)

The image is Hootsweets on DeviantArt! It's not mine!!