A Deal with the Devil?

Would you let this succubus suck you dry~?

If you had to trade your life force for one night of non-stop crazy sex with me, would you do it? ?

That sounds really nice and all ♪ but I'm sorry, I actually need you alive and healthy so you can take care of my needs for a long, long time to come ♡

So how about... as a special gift to you ♪ we can skip the "draining your life force" part for tonight, and skip straight to the night of non-stop crazy sex? I'll just have to drain something else instead ?