I\'ve never been fucked in the ass before

This young girl started having sex a couple of months ago and has been loving it. She currently has a boyfriend who is older than her and is willing to teach her everything she doesn't know, so that she can become a sex expert and satisfy him in everything he wants. One afternoon the girl visits him and after watching a porn movie the two are very excited and start kissing passionately. The girl is wearing a sexy lingerie and the man wants to rip it off, after she sucks his cock he asks her to get on all fours. He lubricates his dick very well and starts to penetrate his girlfriend in the ass, the girl is so horny that she doesn't want to stop.