Looking for stories about a girl who is very gullible or naive

[tuzirututu]

Like they are tricked into sex and still think it's not sexual.

They could be a girlfriend (cheating or not), a sister or just a friend.

Situations would be like:

1. a girl wearing revealing clothes, and guy(s) gives her compliments and she would wear the next time and more revealing, but still not thinking in a sexual way.
2. a girl who didn't notice her tits or pussy slips by accident / or just casually shows it to the guys because she thinks "the guys already saw one anyway"
3. a girl talks casually about sex to the guy(s), because she thinks "he doesn't think of me that way" when he obviously does
4. a girl helps the guy(s) for "medical" reasons / because the guys wouldn't fit into the other girls and she's being a good friend / help him to get ready for a date with another girl
5. a girl and the guy(s) have a bet, but the girl lost. The girl have to do it because "a deal is a deal"
6. a girl and the guy(s) get naked casually, and they play around and it makes their private parts touch, but the girl wouldn't mind