When it comes to freaking her out in bed, there are good ways and bad ways.
Although every woman is different, there are some things that you should definitely avoid doing when it comes to being intimate – especially if you're hoping for a return engagement. Try to avoid doing the following things if you don't want to freak her out – in a bad way – in bed.
Taking Dirty Talk Too Far
Dirty talk definitely has a time and a place, and most women are receptive to a bit of it. It's when you take the dirty talk too far, though, that you run into problems. For one thing, avoid swearing unless you're sure that it won't annoy her. For another, don't start role playing that you're a psycho killer or something. The last thing you want is for your fun in bed to cause her nightmares later on. Finally, don't get too kinky with your dirty talk; it's cool to reveal the things that turn you on, but don't start whispering about something really "out there" in disturbingly graphic detail.
Getting Too Rough
Unless it's agreed-upon beforehand, getting rough during sex is a no-no. Many couples do enjoy rough sex, and it's cool if the two of you have a sort of agreement in place about it. What's not cool is randomly choking her, pulling on her hair or doing other ultra-rough moves on her without any warning. Doing those things will make her panic, and chances are that she won't want to have anything further to do with you. Keep yourself under control and have a frank discussion with her about getting rough before actually giving it a whirl.
Pushing Her Into Doing Something She Doesn't Want To Do
Every guy knows that no means no. This holds true for all sexual scenarios, and doesn't just apply to the basic act itself.
Just because she's naked in your bed, doesn't mean that she's fair game for anything you want to do. One really good example of this problem is anal sex ; many guys want it, and many women do not. Repeatedly badgering her about trying it is only going to make her mad – and might freak her out enough to avoid getting intimate with you in the future.Similarly, trying to be sneaky and doing something without asking first is not cool.
Introducing Hardcore Toys
Depending on how long the two of you have been together, you may or may not have discussed sex toys. Sex toys can be a wonderful addition to a relationship – but that's only if they are talked about ahead of time. Just whipping out a bunch of bondage gear or a huge dildo is really not the best idea ever. At minimum, she's going to be a bit freaked out and nonplussed; at worst, she's going to run screaming from the room. Wait for a time when the two of you are hanging out and try bringing sex toys up; if she's receptive, you could bring them into the fold at a future time.
-DW | Dating & Sex