It's obvious this dude was dying to fuck his neighbor and he took the chance.

The moment he saw her bending over, he knew it was his shot. He crept up behind her, his big dick already hard. 'You want this, don't you?' he growled, grabbing her hips. She didn't resist, pushing back against him, ready for some doggystyle action. He slammed into her, both of them moaning as he pounded her pussy. The neighbor's dog barked in the background, but they were too lost in the moment to care. He gripped her hair, pulling her head back as he fucked her harder, both of them chasing that sweet release.