That cunt's all over the place, even if you sent her on an erotic hiking trail. I don't know what you found in that bitch Katie, fucking a slut.
Uhh... wasn't Katie a virgin prior to our corrupting influence and practiced seduction? Like all she'd ever done was vanilla kissing..... I would assume she would still be that way if you avoid courting her. So slut seems a counter intuitive descriptor.
She certainly does have more mood variance than some other major characters, but for late teen-early 20s aged women with self-confidence issues and a bitch exterior as a defense mechanism. Human beings aren't consistently on a given mood/attitude; I find Jenna's character model very attractive, but she's always felt flat and two dimensional compared to Katie and Monica to me.
I mean her character arc is basically
1. "I'm an ugly antisocial nerd"
2. *MC manipulates J towards gradual corruption*
3. "OH WAIT! I got a tan and realized I had a 10/10 body the whole time, so I don't have any interpersonal conflict! And now I want MC to plow my ass cause I saw it on the interwebz!"
If anything Jenna is probably dirtier in practice than Katie is...
The main problem here is that MC didn't actually improve her social and interpersonal skills, he just pushed her towards being comfortable naked (but specifically with him) and made her want the D. If you do anything other than solo Jenna path for ending, you're gonna ruin that girl for good; you've made her even less self-sufficient than before you got there...
Idk, I felt like Katie's arc, including the controversial (but in my opinion not far-fetched or altogether unrealistic) revenge porn chapter, you were actually helping her to confront and hopefully resolve the obstacles in her life (again, certainly not in the most positive, healthy way, but Karma's a bitch). With Jenna you're just grooming a fucktoy.
I'll take a somewhat erratic (again, young females are rarely held up as the pinnacle of emotional stability) sensitive girl with a hard shell over stagnant conversation; you measure your progress with Jenna by how naked she gets each time she comes to see you, which is way too on the nose...