So Becky's admitting she's the kind of "fake geek girl" that women with nerdy interests sneered at: wearing heeled boots and having sex she doesn't want, so that the dungeon master will grant her an extra saving throw and the comic nerd will give her a second ticket to the con.
Plenty of weird, nerdy girls managed to get nerdy friends of both sexes without being flirty or "hot" or dressing like Hot Topic threw up on them. If people will only tolerate you when and if they're rubbing their genitals on yours, it might just be that you're not very nice to talk to.
This kind of "tee-hee, here I am at the MtG tournament in my CORSET, aren't I bad?" woman happens all the time in geek circles, and it's why you never, ever see Becky making female friends.
Women who want to join nerd groups over similar interests hate these types, because Bexes blow into a nerd group like "hi isn't it crazy I'm a GEEK and a WOMAN I bet I just BLEW YOUR MIND with my vagina and interest in Doctor Who." Meanwhile the two plain-Jane girls who are already in the group are like, uh, hey, over here? Bexes distract and then break the hearts of the guys in the group, and make it so the other girls' interest is viewed as less sincere. If you're fucking men to get into nerd events, you're also training those guys to treat geeky women like prostitutes who care more about free stuff than sharing niche interests.
