[M4A] Truth or dare! What do you say?

I held a party whilst our parents away. It was a bad idea. You come back as people are tailing away towards the end and you see the place in an absolute state! You see me slumped over the sofa, regretting my choices. You’ve had a few drinks too and you can think of some ideas on how to get you to not tell mum and dad!
I’m your step brother (M22) and you’re my stepsister. There’s always been something between us that we’ve managed to unlock between family friendly games of teasing and such. Nothing would ever happen between us of course; it’s only a game.

You know exactly what you’ve done. Coming home in your slutty sundress like that, you’ve even forgotten to wear panties, of course! I know exactly what you’ve done want and I have a feeling you know what I want too.

Ideally, I want a well written para introduction to go into our T/D and to get along and have kinks in common x
Kinks:
Cumplay
Piss
Sub/dom
Bdsm