An object in motion stays in motion until acted upon by an outside force.
In this case Dean Winchester is a force in motion that nothing can stop. He's seventeen, an age at which most teens think that they are totally and utterly invincible. Dean is a senior in high school, Cage Middlton High School. He's handsome, he knows it, he flaunts it, he makes very good use of it. He's loud, some may say obnoxious, but only behind his back.
Dean is part of a loving family, his life is perfect. His mother was gorgeous and amazing, smart, and trusting. His father, strict, but loving, understanding, and honest. His little brother was smart, granted taller than Dean which amde him slightly annoyed, but brilliant none the less.
Dean is the type of person everyone wants to be on a first name basis with. Dean is popular, he's friendly, he's perfection to the highschool standard. Dean is the school's football captain. He's not exactly a genius, not like his little brother, but he can get by with B's and A-'s. Besides, who needs brains when you have football? He likes people, he likes his school, but he hates people who think they are above others because they are rich or some bullshit. And because Cage Middlton is full of such students, he hates most of the school, not to their faces of course!
He has a reputation to protect.
He has top league colleges looking at him to play football for them. He has a girlfriend that was the sweetest thing since licorice and candy corn. His best friend is awesome, she is shorter, he like that about her, smart, sassy, and yeah, a little nerdy, but who cares?
Everyone loves Dean.
Dean Winchester is totally, utterly, and unarguably an object in motion.
An object in motion stays in motion until acted upon by an outside force.
In this case Dean Winchester, who, as has already been established, is an object in a continuously unstoppable motion. Dean lives in New York, the big city. His routine is simple and continuous.
He wakes up at 6:30 in the morning, it takes him about fifteen minutes to get ready, he's kissing his mom's cheek and yelling "goodbye" by 7:00. As he jumps into Charlie's old van, which he is still slightly scared to get into, he nods at her and she punches his arm playfully with a smile on her face. Sam usually catches a ride with Adam, his friend from the middle school that starts thirty minutes after the high school.
Charlie and Dean generally get to school by 7:10, give or take traffic, porcupines, and either one of them being slightly off time. By 7:15 they have met up with their group of friends, Jo, a cheeky blonde girl who loves to laugh, Balthazar, a foreign exchange student from the UK, Ash, a questionable but friendly dude, and Anna, a sweet red head that Charlie was kinda really crushing on. Dean's girlfriend gets to them by 7:18 at least, her name is Meg, Dean thinks she's adorable, and really she is. She's really nice...to Dean. By 7:25 Dean kisses Meg goodbye, waves and departs with Charlie to their homeroom.
Five minute detour to talk to his football coach. 7:30. Another five minute detour for a second period pass to the "library" (football field). 7:35. Yet another detour to greet teachers, students, and the office staff that smile graciously at him as the principal pats him on the back for no apparent reason. They make it to homeroom usually by 7:50. Then they have a ten minute leeway till classes actually start. 8:00.
The rest is a normal thing, classes through till 10:30, then lunch for 40 minutes, and then two more classes before he returns to Charlie truck and to his home where he generally sleeps.
Yes sir, Dean Winchester is without any doubt an object in an unstoppable motion.
That is...he was an unstoppable object. But as does with every object that is in motion, at some point, at any point at all, an outside force comes along