Characters: Sam, Dean, Reader
Warnings: None, just fluffy humor
Word Count: 1,022
Summary: What happens when Reader gets curious about Sam’s green smoothie? Hilarity ensues, that’s what.
A/N: I kept the reader as neutral as possible – MJ can be interpreted as any gender, in any ship you prefer. Special thanks to @jerkbitchidjitassbutt for her advice and expertise (love you, girl!).
The Impala cruised along, effortlessly gliding over the long, dark stretch of highway. The radio was off and conversation had long since dwindled, leaving nothing but the familiar soothing, throaty growl of the engine to lull you into a state of blissful relaxation. You stretched your battle-weary limbs and reclined across the length of the backseat. Dean remained intently focused on the road, while Sam gazed out the window as he sipped contentedly on… something. What is that? you wondered. You hadn’t even noticed the cup in his hand until now. Where did he even get that? The contents looked like pureed Martian, but Sam seemed to be enjoying it. You were intrigued…