Maybe Rowena Would Do It? He Thinks - Tumblr Posts
Dean gets hit with a love spell during a case and looks at Cas first trope except him and Cas are already together, so Cas and Sam assume nothings gonna change. And nothing really does, except that Dean now openly holds Cas's hand when their out walking around and he holds onto Cas's waist from behind when their just standing and he lets Cas scratch and play with his hair without pulling away from embarrassment and worst of all is the kissing!
Sam will be explaining what they should do next to catch the monster and when he looks up he sees Dean staring softly at Cas and Cas staring softly back which is fine, that's what they do, they stare, so Sam turns away. But when he looks back for the second time he sees Dean start peppering little smooches all over the angels face, just quick kisses on his nose and cheeks and forehead and neck too, all while they both smile dumbly, which is also fine, its not like Sam hasn't seen this before, they were exactly like this in their honeymoon phase at the beginning of their relationship, so he turns away again trying to focus but then he has a question to ask Cas and he turns and- HOLY SHIT THEY'RE MAKING OUT! RIGHT IN FRONT OF HIM THEY'RE USING TONGUE AND CAS'S HANDS ARE AROUND DEAN'S WAIST AND HIS HANDS ARE IN CAS'S HAIR AND THEIR MOANING AND SAM NEEDS TO BEAT THEM OVER THE HEAD WITH A STICK-