You finish the summoning circle and chant the incantations. The candles are lit. The conditions are right. A pillar of brilliant golden light shoots from the floor. A proud, regal figure walks out of the light and bumps into the invisible barrier.
"Someone's done her homework." Her golden sandal slides against the chalk circle. Her long spade-tipped tail idly flicks against the barrier. Sparks scatter to the ground. "You wouldn't believe how often I get summoned and they just let me wreak havoc."
"Surely you summoned Lily of the Planes for some reason." She runs a manicured hand along her polished ivory horns. "Looking to make a deal, perhaps? Money?" She lounges on a mighty hoard of illusory gold coins. She flips one against the barrier. It's got her winking face.
"Power?" The coins vanish and she sits behind a fine mahogany desk, feet kicked up. "Running for office very popular these days. I've always preferred a nice, simple coup." She twirls her peaked cap around her finger and throws it straight up.
It turns into a spotlight shining down on her. "Perhaps a legion of roaring fans? I could get you a recording contract like that~" She snaps her fingers, and a lengthy scroll cascades from the sky. "Sign on the dotted line, and you're famous."
You're shaking. Nervous. You don't want to make a deal. You don't even want to make eye contact. You're protected from the hypnotic tones of her voice and the calming warmth of her presence, but you can't help but listen to every melodic word. You clear your throat.
"Are you asking me out~?" She squeals. "That is so cute! This isn't an escort thing or making someone else jealous, is it?"
You shake your head.
"Well, you'd have to let me out." She teases. "And I can't guarantee you wouldn't end up my pet. I have that effect on humans~"
"I'd take good care of you. Get you fitted for a nice collar-" She's twirling a collar around her finger. Smiling as the braided hellsilver glints into your eyes. "-I'd even pretend to be your girlfriend when we meet your parents."
"Your parents are cool with their daughter giving oral sex on demand to her demon girlfriend, right?"
Look at you, all blushing and flustered. You shuffle to the summoning circle and smudge the chalk away with your foot.
And that's how you got tackled and fucked silly by your new demon girlfriend on the basement floor.