Perrito followed his instincts and began servicing him. Puss was shocked and disgusted at first, but when the dog touched his sweet spot, he was succumbed into a field of pleasure and let Perrito uninterrupted.
Moans were heard around the forest, and it alarmed Kitty Softpaws. She mistook it as sounds of pain from her lover, so she followed the noise.
Puss was close to shoot his load, so he tried to alarm Perrito. He knew Puss was alarming him, but he kept on puffing. He wanted to make his friend happy. Puss was preparing himself, he's almost there, almost, almost…
Finally, it happened.
He spewed his warm liquid into his buddy, all of it. His mind was filled with ecstasy.
"Thank you, Perrito."
Suddenly, both of them heard someone coming, so they set themselves in a cleaning montage and make sure no one knows this ever happened. They set themselves in normal poses so no one can suspect.
Then, Kitty Softpaws comes out of the woods and sees Perrito laying his head on Puss, calming him down. She's glad to find them safe and sound.
But thankfully, she's unaware.
"Shrek is Love, Shrek is Life." -God, 2013