It wasn't the first time Keegan had come over, him and your father had been and remained friends for decades.
Perhaps it had been the loss of your squad dog that made Riley take a liking to you— maybe Riley....sensed it, perhaps he recognized another military person, or perhaps it was just your talent with animals.
Keegan couldn't figure it out, as he sat and enjoyed a beer with your dad, chatting about old days or whatever was happening on the news that day, you sat crouched down, Riley was in front of you. You tossed the ball around, Riley didn't chase it, he grew bored of the same old you throw the ball and he gets it.
He had started biting on your arm and hand, hard enough to feel, yet not hard enough to injure
Keegan watched, confused and torn between calling Riley back to him, or letting him chew on your fingers