It was just for fun (Luke Hemmings)

Naomi and Luke were friends with benefits, well not really friends, they didn't like each other lot. Naomi starts having feeling towards Luke, but he doesn't like her back, he wants her for the sex, and nothing more. Naomi trys to stops all the feeling towards Luke by getting a boyfriend which happens to be Ashton Irwin, Luke's band mate. What happens when Luke tells Ashton that they had sex for fun because he wants her back, because since she been with Ashton, he started having feeling towards her.

I would like to thank @BethanieIrwin for the idea