1. Fuck her.
2. Are you doing other activities with her? If so, stop and return to step 1.
Any other "how to" you might be looking for really translates to "if I'm honest about only wanting sex with her, I'm afraid she'll leave and I'll be sans poissy," right? Well, strengthen that frame and accept the fact that she's entitled to her own wants and needs in any relationship, including one built entirely on casual sex, and that she might not want or need the same things you do.
You can deliver the message by only being around her for fucking purposes, but she will eventually needle you into admitting what you're after. Kia kaha and lay it out. If she walks she walks.
2. Are you doing other activities with her? If so, stop and return to step 1.
Any other "how to" you might be looking for really translates to "if I'm honest about only wanting sex with her, I'm afraid she'll leave and I'll be sans poissy," right? Well, strengthen that frame and accept the fact that she's entitled to her own wants and needs in any relationship, including one built entirely on casual sex, and that she might not want or need the same things you do.
You can deliver the message by only being around her for fucking purposes, but she will eventually needle you into admitting what you're after. Kia kaha and lay it out. If she walks she walks.