Carefully, maneuvering muscles still somewhat unfamiliar, Rob stretched his body and guided his rear cock into his fore anus, where it was greedily welcomed, sliding quickly in as Rob let his body relax. He sat still for a moment, marveling at the sensation of filling himself, before his fore cock, rubbing against his tight stomach that rose and fell with each rapid breath, demanded his attention.

Leaving one hand on the floor to support himself, he reached for his fore cock with the other, and slowly, learning how to use his new muscles as he went, began to gyrate on his rear cock. Fucking himself.

Read all of Rob's story here.