I think it's just a difference in the type of character. Her OC is more boring as a person than Natasha. Most people are.

She's also one of very few people who are starting in the game with no real sexual experience. I prefer the way she's handling the situation over the way some of the other people in that boat have done things. That being said I am also waiting until her OC gets more experience in game before doing anything with her because I have no interest in playing out smut with a character who doesn't know what they're doing and what they want yet.