Riley has sneaked out to watch Angel leave. He wants to make sure he doesn't… take any detours.
He follows him down a dark alley, being as quiet as he can be, hiding behind trash cans whenever Angel looks over his shoulder, which is often. The smell of rotted banana peels fills Riley's nostrils as he wonders if Angel is expecting someone.
Riley soon realizes he is not the only one following Angel. He ducks behind a trash can for the umpteenth time as a blonde, black-clad man steps out of the shadows and murmurs "Angelus?"
Angel turns slowly. "Spike."
They know each other? What the heck? Riley frowns, looking from one vampire to the other.
"What are you doing back here?" Spike asks.
"Clearing some things up with Buffy," replies Angel.
"The soldier thinks you slept with her," Spike says.
"The soldier," Angel growls, "is an insolent child."
Spike flexes his jaw. "Are you trying to turn me on?"
Riley's eyes widen.
"No, Spike," Angel sighs. "What do you want, anyway?"
Spike strides forward so he is very, very close to Angel.
"I want to come to Los Angeles with you," he says, in such a low voice Riley has trouble hearing him.
"I want things to be like they were in the old days. The two of us, together…"
"The old days are done, Spike," says Angel.
"They don't have to be," Spike hisses. He steps closer, so close that their noses are almost touching.
"What are you doing, Spike?" Angel's tone is warning, dangerous even.
Spike ignores his question. "Angelus," he groans, and his voice is filled with what Riley, horrified, recognizes as lust.
Angel swallows hard. "Don't call me that," he says.
"That's who you are," says Spike.
"That's not true," snarls Angel.
"You know it is," Spike snarls back, and he presses his mouth to the taller vampire's.
Riley is frozen. When the kiss is finally over, he hears Angel say "I'm sorry."
"Sorry for what?" Spike asks, perplexed.
"This," says Angel, and Riley, realizing with a jolt what he is about to do, squeezes his eyes shut. He can still hear the sounds though—the grunts, growls, moans and gasps coming from the two men as they fuck, hurriedly, desperately, painfully.
Riley will always remember the sound of Spike's yell. It is imprinted in his brain, echoing in his ears.
After they are done, the two vampires kiss one last time, and part, still breathing raggedly.