LMR (Last Minute Resistance) isn't you escalating when she's clearly angry/scared and pushing you away. That's called rape and you're sent to a place where your virgin asshole (I hope) will be used with no mercy by much stronger men while you perform daily activities such as taking a shower. LMR is when she's clearly enjoying herself, but for some reason she stops when you try to have sex. You get it from lack of trust.
HOW TO AVOID LMR
... Because it's better when you don't get LMR.
Make her chase
"You're cool but...". This is what makes her chase and start qualifying ("You're cool, but don't know if you're cool enough", "Only if you're cool",... playful tone, not serious). Say it and change the topic, leave it open. She'll feel like she deserved and worked on it, instead of you always pushing it forward.
Step back before she does
Give excuses to not have sex as a joke ("You can seat next to me, but keep those hands off me", "We're not having sex tonight, I'm on my period", shit like that).
Be authentic
Don't put these masks to try to be cool or edgy or some shit. You're not cool dude, so don't try to be. Also, don't try to be yourself, ACTUALLY be yourself. When you're congruent, people feel that authentic vibe from you and are authentic as well, which makes them feel good.
Show her your life
Showing your life through stories, pictures, etc. The more you show who you are, the more they trust you. Good topics might be what you did that day or your childhood. Obviously, don't tell her dark details of your childhood with your uncle, keep it light and appropriate to the occasion. Also, there are more things to storytelling, but the basics are this.
HOW TO DEAL WITH LMR
You aren't perfect, so you'll still get it once in a while. Relax, take it easy, you have ALL night, don't rush things.
Make her chase & Step back before she does
These also apply here.
Shit tests
"We're not gonna have sex tonight!", classic - usually a pretty accurate indicator that you WILL in fact have sex. Just act like you don't care ("Sure, we'll not do nothing you're uncomfortable with", "It's fine, I can always jerk off", "It's cool, I ain't bringing you here just to fuck, you're cool and fun to hang out with, if it's going too fast just let me know, you can leave, it's fine, I don't care"). You show security, that you don't care, you hit her ego a little bit. It needs to be true though, you gotta truly not care.
Freeze out
If she keeps giving LMR after all this, do the freeze out. The freeze out is when you make her feel the loss by instantly "de-escalating" the situation a lot. For example, you're making out, there's music, you try to take her clothes off and she keeps giving you resistance. She clearly wants to stay, she's enjoying herself, but she's giving you shit. Get off her, turn the light on, silence the music and do something else. Make her feel the loss. Important with the freeze out: NEVER be butthurt. If she catches a tiny bit of butthurtness, you're done. Go to the kitchen to eat something, go watch a movie, go to "sleep", whatever. Usually, she gets confused. So, you go to the kitchen - she'll look at you and shit, just look at her and ignore, until she starts escalating on you (i.e. touching you and shit). Smoother ways would be to start talking about random shit, instead of leaving. Some guys like to get up and "go check their email" - I don't like that because it's just too fucking random and hard to not come off as butthurted.
Talk to her
After all this, if she keeps giving LMR, talk to her. Try to know what's happening, why she's unconfortable (might have a boyfriend, might feel judged, ...). Let her know that you won't tell anyone, that it's cool if she wants to explore her sexuality with you, etc. By the way, actually do what you're promising. Don't tell anyone about it, no one cares if you get laid.
I took this shit to a big extent, but you'll probably not need this much work. The chick isn't stupid, she knows what you want. You have all night, let things flow, don't rush. Alcohol might make her comfortable. Some chicks actually want to drink just to make themselves relax, just like guys in a bar before approaching. So give them a drink and let go, both you and her want it to happen. LMR is a bitch, so just get rid of it, girls will appreciate it.
Have a good one.
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