cas and dean (okay, mostly dean) seem to be under the impression that sam has no idea they are together. if you asked sam, however, he could give you a list of times the two were awful at keeping it a secret:
1. the time sam walks past the library and sees cas and dean sitting on the table across from each other, both deep into whatever they are reading. under the table, their legs are stretched out so that dean’s knee is firmly pressed between cas’s.
2. that time a bump on the road wakes sam up from his nap on the backseat of the impala. he doesn’t get up, only opens his eyes, struggling to see in the dark. the radio is low, and cas and dean aren’t speaking but the arm dean is not using to steer the car rests on the back of the seat, his fingers slowly stroking the back of cas’s neck.
3. when they are spending the night at the motel after a hunt, because sam has a broken arm and the painkillers are making him sleepy. when he wakes up the next morning, the sun is already blearing into the room and there is a wet spot on the pillow where he apparently drooled while he was out. on the bed next to sam, dean and cas are sitting up watching a movie from the laptop, with cas tucked under dean’s arm. they are sharing headphones, and when dean kisses the top of cas’s head, cas hides a smile against dean’s neck.
4. that time sam wakes up at 2am because he’s thirsty, but cas is already in the kitchen. cas’s hair somehow manages to stand to every single direction at the same time, and he is naked apart from the boxers sam recognizes as dean’s. there are two dark hickeys low on his abdomen, and one high up on his inner thigh. sam blinks. cas blinks. sam blinks again, and decides water can wait until the morning. when sam enters the kitchen the next morning, cas is already sitting at the table. he tells sam there is coffee in the pot, and they never acknowledge what happened earlier.
5. that one sunday afternoon when sam is looking for cas because he needs help with a translation he has been working with all morning. on the living room tv netflix is asking if you are still watching, but no one is, because cas and dean are asleep on the couch. they are both on their sides, with dean’s back against the back of the couch, arms under his head. cas is in front of him, with his face pressed against dean’s stomach, his arm around dean’s waist. the couch isn’t even that big, so there is no way they should both fit comfortably, but neither of them wakes up when sam walks into the room. carefully, he makes sure his phone is on silent. then he snaps a picture and sends it to eileen.
