Obsidian - Rigby Brothers

Pitt's old clunker had finally given out. And of all fucking places, a little town that he'd never been to and had no idea where a decent mechanic could be. While he stood on the side of the road, Pitt couldn't believe his luck when a motorbike pulled up beside him and a guy named Donte explained that he was on his way to work, a mechanics. It was perfect. Obsidian was lonely. He watched his brothers all becoming mated, having children and falling in love.
But there was none of that for Obsidian. Of course he had plenty of bed partners, that he wasn't shy of, but someone to call his own. One that would be his forever, there was no one. He'd asked Mother fate for a partner, and Iver had told him quietly that one was coming, but patience was never his strong point. This is an MM Mpreg story. Language and themes suited to 18+