Maybe not forced, but I've heard plenty of people talking about pushing onwards through resistance on so on, that she might be saying no with her mouth but yes with her body, etc.
While that might be true in some cases, that someone is resisting, assuming that is the general case is kinda like this:
http://www.youtube.com/watch?v=b4hNaFkbZYU
I recently discovered that an online friend (who I've known since around 2004) was an aspiring (though not yet actual) pick-up artist trying to learn the game. A sample from the conversation:
(3:49:14 AM) Him: My buddy wasn't sitting around watching disney movies with her, he was blowing through resistance on the first date and not answering her texts.
(3:49:28 AM) Mumei: ... blowing through resistance
(3:49:30 AM) Mumei: ?
(3:49:40 AM) Him: Women have something called the anti-slut defense
(3:49:50 AM) Him: it can go up early in an interaction when she feels attraction for a male.
(3:50:15 AM) Him: I know you're instantly thinking about rape but it's not like that at all.
(3:50:27 AM) Mumei: No, it's actually about what I thought
(3:50:47 AM) Mumei: Most pick-up guides posit interactions with women as a sort of
(3:50:48 AM) Him: Their anti-slut defense will go up early on if the guy starts moving too fast, or late on when she gets second thoughts about sex.
(3:50:50 AM) Mumei: predatory game
(3:51:02 AM) Mumei: built around breaking down female resistance to male overtures
(3:51:07 AM) Mumei: in the interest of "scoring"
(3:51:24 AM) Mumei: the point isn't really about a relationship or anything long-term after all; the point is to get laid
(3:51:26 AM) Him: and most feminist rhetoric has told girls that having sex with a man they find attractive is horrible
(3:51:33 AM) Mumei: that
(3:51:34 AM) Mumei: uh
(3:51:35 AM) Mumei: isn't
(3:51:40 AM) Him: well yeah PUArtistry is about getting laid
(3:51:51 AM) Him: but it can be used to develop lasting relationships too
(3:52:09 AM) Him: relationships don't work without sex fyi, so you dismissing the desire for it is telling
(3:52:36 AM) Mumei: I think that starting off your putative relationship on a bedrock of lies seems like a less than stellar idea
(3:52:42 AM) Mumei: I'm not dismissing the desire for it
(3:52:45 AM) Him: It's not lies.
(3:52:50 AM) Mumei: You're misreading me if you think that's the case
(3:52:56 AM) Him: If you remain congruent to yourself it's not lies.
(3:53:06 AM) Him: You're just presenting yourself in the best and most attractive way possible.
(3:53:14 AM) Him: Unless you think it's lying for a woman to wear a pushup bra and makeup.
(3:53:46 AM) Him: You act like the desire for sex is somehow a base and unimportant or stupid thing as a motivating factor.
(3:54:03 AM) Mumei: Nope
(3:54:09 AM) Mumei: That's not my intent, at any rate
(3:54:34 AM) Mumei: What do you tell a girl
(3:54:38 AM) Mumei: in order to break down resistance
(3:54:48 AM) Him: I am far from a practiced pick up artist
(3:55:02 AM) Mumei: I don't mean you
(3:55:05 AM) Mumei: I mean in the abstract
(3:55:11 AM) Him: There are several ways
(3:55:29 AM) Him: A lot of resistance is "I can't believe I'm doing this. This never happens."
(3:55:37 AM) Him: So you just repeat it "I know me neither."
(3:55:57 AM) Him: Some of it is "Wait we should slow down."
(3:55:58 AM) Him: That's dealt with by saying "Okay, just tell me to stop when it isn't feeling good anymore."
(3:56:27 AM) Mumei: So let me get this straight
(3:56:29 AM) Him: and if she still stops you there, that means you have made a mistake and you can do several things, like go cold on her or something else that I don't remember.
(3:56:36 AM) Mumei: You think that isn't lying?
(3:56:42 AM) Mumei: I mean sure
(3:56:49 AM) Mumei: It might not be a lie the very first time
(3:56:52 AM) Him: Her ASD is lying to her.
(3:57:23 AM) Mumei: It's talking about predatory sex
(3:57:25 AM) Mumei: what you're describing
(3:57:29 AM) Mumei: and party rape
(3:57:36 AM) Mumei: which luckily you haven't described yet
(3:57:38 AM) Him: lol
(3:58:05 AM) Him: I'm not saying you're doing it, but the desire to compare PUA to rapists comes so often.
(3:58:27 AM) Mumei: I don't think that they are like rapists
(3:58:35 AM) Him: "He made me so attracted to him and he wasn't willing to commit the rest of his life to me, IT WAS RAPE!"
(3:58:55 AM) Mumei: I think that the comparison comes because the pick-up mentality constructs sex in the same way a rapist does
(3:59:07 AM) Him: Feminism has also produced the particularly odious false-rape accusation culture that you should be especially angry with because of how it harms actual rape claims.
I would hope (though I know
someone is going to disagree) that everyone can see how attitudes like that can easily lead to rape because some moron bought into that nonsense about blowing through resistance or anti-slut defenses or believing that the only way a woman wouldn't want to have sex with you after your Jedi PUA tricks is because you fucked up, and not just for one of a million other reasons.