Teaching my neice about sex

ok so my oldest niece was 17 and her mom tried to teach her about sex but me being me, she came to me to learn. so she came by and asked stuff like "What's it's like fucking a guy, whats it look like, feel like, bla bla bla" so i was like "do you really want to learn?" she said yes so i went on here and showed her my favorite video. she was stareing like

"what the fuck!" i told her that if she wanted to learn there but i was not getting into talking, then a guy came down in a towel i told her we had to go do the thing that was in the video then went upstairs.

btw this was the video:
http://xhamster.com/movies/1053001/interracial_teen_couple_in_the_attic.html