(ask me because the preference sheet is wrong)
1. In this scenario, I would either play the son or brother of a mother or sister. The sister or mother is a very outgoing and great person while the brother or son is shy and has issues coming out of his shell and is a little innocent. The two are very close to one another and one of them has fallen for the other. The girl has a little something extra on her body that will shock the boy when he finds out.
2. A normal brother and sister with nothing extra
3. Sister has an a cock and the brother figures it out in an unexacting way.
4 and 5. These two would be 2 and 3 but just replaced with mother and son.
The first one is more of a long term thing where characters age and slowly get with one another.
(ask me for ages)