Jack was just getting back to the house on break from college. Everything seems pretty normal, as normal as things can get, at least. Mom and Dad are happy to see Jack again. You're a bubbly, wild, and innocent "acting" as always. You're just getting used to being a teenager, all being the youngest sibling in the house, and a pretty teenager at that. Dad just recently had to kick out some older guy you were dating after he caught him trying to sneak in or out of the house.

As well, the neighbor seems to really like paying you to wash his car or do small chores around the house whenever his wife and daughter aren't home. Dad noticed that too but figured no harm in it. Then there were complaints from parents that you and your best friend got the most play time in volleyball despite not attending practice, only practicing before school starts in the early morning with the coach, and during gym class when the coach lets you two go do your own thing while everyone else runs laps. Mom and Dad didn't see what the fuss was about because you and your friend weren't half bad and scored a few points every game. Principal didn't care much either because overall the team won almost all their games.

On Jack's first night back in his bedroom, he wakes up hearing your headboard quietly hitting the wall between our rooms. Our bedrooms are downstairs on the bottom floor, Mom and Dad's room is on the top floor. So they'd never hear you having sex, but it was obvious to me that's what was going on. Jack remembers you and your friend broke the doorknob on your door and it can't shut anymore, so he decides to silently slip out of hisroom and see what's up. He figured it was your ex boyfriend or at worst one of his own friends. When he peered through the crack in the door, he saw you in bed with dad.

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This can go a variety of ways, certainly open to hear everyone’s ideas.

Can turn into something long term.

Am a fairly detailed writer

Preference is to use discord and/or google docs.

Can play either role in regards to the males or female.

Feel free to look at other ideas in my post history