"This potion will double the pleasure."

Before you and your wife, Sharon got married, she was still studying her witchcraft. You were going out, but still had a long way to go. One night she texts you for a booty call while her college roommates are out of town.

"You should really come over tonight... XOXOX"
You reply, "I don't know, I got class in the morning..." knowing full well you're going to go over.
"I'll make it worth your while ;p"
"How are you going to do that?"
"I've got a potion here labeled 'double the pleasure' and enough of it to last a week."
You're already out the door with your last reply "OMW."

You make it to her place relatively quickly. You go to knock on the door, but before your fist can hit wood it opens and you are dragged in a tight embrace. She's wearing a black nighty with a pair of matching black panties.

"I take it you've already had some of the potion?" You ask.
"Nope, I'm already worked up." She starts to grind on you gently. You can feel the wetness between her legs through the panties. "Besides, I didn't want to start without you..." The both of you are making out and feeling up each other as you clumsily make your way to her room.

"So what exactly is this potion of yours? Some sort of Spanish Flea?" You manage you ask between kisses and the removal of your clothing.
"I've never used it before, but the source is trusted. I got it from a classmate, she said it's different for everyone, but results are guaranteed." She breaks away from you, leaving you nearly as naked as her. She makes her way to a table where a plastic 2-liter with a homemade label stating 'Double the Pleasure' is sitting along with 2 shot glasses.

"Since I'm already wet and ready, I figure the first shot should be yours to catch up with me." She pours a shot and brings it over to you on the bed. She hands you the glass and works her way down to your boxers, nibbling your chest along the way.
"Bottoms up!" You toast and quaff it down. It tastes like someone added cinnamon and menthol to Dr. Pepper.