Family Ties/Peak into Heather's room

Curiosity overtook your lust and you made your way to Heather's room to investigate the sound. Peaking through the small opening of her door, you could see your older sister rapidly thrusting something into her pussy, moaning softly as she did so.

Normally this wouldn't surprise you as you have peeked on her a few times but this time was different. It was what she was saying that caught your attention.

"Timmy, oh yes fuck me Timmy," She said, barely loud enough for you to hear and you could see her thrusting faster. "Faster please faster, oh yes Timmy!"

The last words were emphasized with Heather finally cumming, body shaking in climax before she finally laid in her bed exhausted.

It never crossed your mind that your sister fantasized fucking you but seeing it happen with your own eyes makes your dick throb with need. It helps that Heather started to pleasure herself again, moaning your name.

You decide to:

• Go in and give Heather what she wants.
• Continue with your original plan and make your way to your parent's room.