1. Young college student and his friends Mom. They meet in a bar.
2. May be a cliche but how about a College Cheerleader? We can work on a scenerio.
3. 25 year old wins the lottery but doesn't tell anyone but a cute girl he works with and he uses the money to take her shopping, hoping for more.
4. Stuck in the mountains in the snow. This one is a good survival one. Maybe cars broke down or got stuck.
I can give more details on each if you're interested. Just PM me.