Friend with benifets question?

Ok so I am a 14 year old guy, recently me and this girl decided it it'd be cool to be friends with benefits, now at first glance that's the best thing a guy can here, a hot girl who just wants to be friends with benefits, I get to make out wih her, finger and maybe get a little head but, I'm not entirely sure if I should go for a friend with benifets thing with her I don't know it kinda feels wrong but at the same time so very right and awsome im like 55/45 on this (no to yes respectivly) please could I get some opinions on this.