If you're not already reading it... run, don't walk, to thebratqueen's Pet. It's a lovely mix of Angel/Wesley/Spike, and subsequent chapters are found in her Memories.

In her own words... "Should worlds in which Spike and Angel have kinky sex while Wesley spontaneously watches happen to be your thing, by all means proceed. Spoilers, such as they are, up to Just Rewards. After that who are we kidding?"

See? I can rec something that isn't Spuffy.