It depends on what it is. Most oral sex given to women is totally different than what is done IRL. The one who is giving tends to keep their mouth open in porn, so you can see what is going on. In real cunnilingus, the lips are usually sealed around the area for better suction and ability to use the entire mouth.



Often blow jobs are either too shallow or bordering on gagging in porn. The real deal is somewhere inbetween.



The same goes for anal sex. Few people have real anal sex the way they do it in porn. Not only does it take more time, but rarely is lubrication used in porn. Also, the thrusting is often too hard for most newcomers to anal sex.



As for PIV (penis in vagina intercourse) sometimes it's realistic, sometimes it's not.



Sometimes you can get ideas from porn. Often what they are doing is unrealistic or uncomfortable.

We were watching a movie last night and My Man got a wicked idea from the DVD we were watching to good results. So sometimes it works. Sometimes not.