Pairing(s): Dean/Castiel – Destiel – and Dean/OMC(s)Tags: fps, slash, asexual!Cas, voyeurism,Link: spnkinkmeme Prompt: Cas is asexual, but he really enjoys watching Dean get off, whether it be masturbation or with someone else. Dean is reluctant because he never wants to hurt Cas, and he insists he’s fine never having sex again, but Cas convinces him …