I enjoy girls like this because they tend to be desperate and insecure. They're so easy to manipulate.
I like to tease them until they agree to offer blowjobs to strangers to prove their devotion to me before I let them feel any sexual pleasure.
I'd escalate with this one and edge play her until she is loudly begging me to "rape" her. Then I won't, because that will come another day when she's not ready for it.
Since I'm old enough to be her father I'd make her ask other girls if they want to watch her suck her Daddy's dick. If she is denied she'll up the ante by offering to eat them out while Daddy fucks her up the butt.
Yeah, it's great to turn a desperate and insecure 18 year old girl into such a dirty little trollop!