Redshirt

Theodore Thompson is a salesman visiting Cairnsford in Colorado to generate more business for the web design firm he works for. When a morning meeting ends early, he has the entire afternoon to kill, and decides to find a good lay, so as to relax and enjoy himself.

In a bar he finds a practicing witch who is into fertility rites. She also lives close by, and invites him back to participate in one. She assures him she doesn't worship Satan and has no intention of sacrificing him to The Evil One.

Ted believes he's hit the jackpot. Unfortunately, he didn't bother to inquire about who she does worship.