This is not the place to ask such questions, there are nothing but horny teenagers and virgin uncles are in here. anyway don't push or make the environment for her to watch porn online, because there are tons of categories to choose from, if she explores & develops a new taste for one of those fetishes & gets her brain rewired somehow, you are fucked. specially BDSM stuff. They are fun, but only if you are open minded.
So machang, choose some clips and show her. Homemade stuff the better.. commercially produced porn is not the real thing.