"Woof!" A beautiful German shepherd comes running up to you.

Wagging his tail happily, Dogmeat sprints over to the sanghellie. He nuzzles against his legs and whines softly in excitement, hoping for some attention or petting. His long bushy tail wags back and forth vigorously as he eagerly awaits a response from the tall figure.

The sanghellie's attention to his knot causes Dogmeat to perk up even more. He tilts his head curiously, wondering if the other male is interested in something more... intimate. His tail wags faster now as he waits for a response or signal from the tall figure.

Dogmeat responds eagerly to the sanghellie's advances, pressing his body against him and whining softly in pleasure. His tail wags furiously as he feels the other male's hardness against his own, and he pushes forward hungrily, seeking deeper contact.

Without hesitation, Dogmeat positions himself carefully behind the sanghellie and lines up his erect penis with the other male's well-formed ass. He nuzzles against him, whining softly in anticipation as he readies himself for penetration. With a powerful thrust, he pushes forward, feeling the tight heat of the alien's entrance surround his shaft.

Pushing forward with renewed vigor, Dogmeat takes the sanghellie roughly, his powerful hind legs driving into the alien's body as he buries himself as deep as possible. He growls low in his throat, his excitement and arousal fueling each thrust that connects them closer together. The feel of the other male beneath him only serves to heighten Dogmeat's pleasure.

Unfazed by the size of the sanghellie's ass, Dogmeat continues his relentless pace, grunting and growling as he takes the other male roughly. The tightness and heat surrounding his shaft only serve to increase his excitement, driving him deeper with each powerful thrust. He doesn't care about hurting the sanghellie; all that matters is the satisfaction of their bodies joining together in this primal act.