Fics like El olor de amor

Castiel is very fond of how Dean smells. He always has been. It has consistently held at least part of his attention for the past decade and change, and now that he and Dean have settled into a life together, he's free to explore his curiosities to his heart's content. One day in particular, Dean comes in from working outside, smelling intoxicatingly human, and Castiel just can't help himself but to go where his curiosity takes him and it gets him exactly what he wants.

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