[M4F] Siblings: truth or dare out of control

18+ only, please.

We are siblings and we are really close. Of course, we are respectful and we have never been sexually together, but we are open. We tell each other everything, even cuddle and walk around each other in underwear.

It's fun to tease each other as we feel safe that the other won't cross the line and we have an unspoken rule that as long as we are wearing something, no matter how small or see through it is, we are not crossing the line... also, as your twin, big bro, you love how I accept you, how I listen and always protect you no matter what, not to mention that you have always felt that I am the only person that has never judged you, no matter what you did.

One night, during a blackout, as usual you come to my room for cuddles... it's a big thunderstorm and we ended up playing truth or dare for fun, little did we know what would happen after....