you and me (and the devil makes three), by Paradisi (Apricot)

“I always knew you’d be back." 

At those words he feels the tremor of Wyatt’s laugh against his skin. It sends a cold sweat over his chest, and he shivers at the sudden unwelcome stab of fear, twisting uncomfortably with arousal, and he’s about to pull back when heat closes over him— her mouth.

Adult, post-season 1. I have such a fondness for poor Teddy, and this is such an intriguing look at him and Dolores – or is it Wyatt? (Not entirely season 2-compliant, but pretty close.)