Personal Trainer Sister

[GD88]

Protagonist recently came close to getting married but was forced to break off the engagement and the wedding because his fiancee cheated on him. He became depressed and while he didn't turn to alcohol or drugs, he did binge eat and became overweight.

Protagonist went through counselling. During a session, Counsellor told Protagonist to stop moping around and to live his life. Counsellor said that he had gotten Protagonist a gym membership and some personal training sessions.

The personal trainer turned out to be none other Protagonist's Sister. Sister said that she knew it was Protagonist when the gym gave out a list of people needing personal trainers and had to take him as a client. Protagonist is just surprised that Sister is in town.

Neither the counsellor or the gym knew about Protagonist and Sister's connection because Sister is using her married name.

Protagonist and Sister spends time with each other both inside and outside the gym. Sister eventually spills the beans that she's going through a trial separation with husband at the moment and that's why she's in town. Husband is insecure that one day Sister would hook up with someone at the gym (Sister in fact only takes up female clients, Protagonist will be her first male one), Sister resents the fact that Husband does not appreciate her passion for fitness.

The two siblings come to enjoy each other's companionship. Protagonist increasingly takes notice of his sister: her toned and fit body and her sexy workout outfits. Sister increasingly takes notice of her brother as he progresses and sheds off fat and how, he's not half-bad looking.

And we take it from there. Probably looking at a slow build rather than a stroker here.

 

[Hypoxia]

And we take it from there. Probably looking at a slow build rather than a stroker here.

In my brother-sister stories, they either "just do it" because that's how things worked out (i.e. I punted) or there is some definite trigger that takes them across the taboo event-horizon.

A trigger. What drives these siblings into copulation? Maybe dramatic emotional crises. Sis's soon-to-be-ex turns asshole and terrorizes-humiliates-abuses her. Sis and bro are in the steam bath when she breaks down. He comforts her. She grasps. And the birds and the bees have their way...

Then, of course, they work up a plan of justice-revenge for the ex. Cue the jagged music and BurnTheBastard tropes. Do bro and sis live HEA? Sure!

 

[GD88]

In my brother-sister stories, they either "just do it" because that's how things worked out (i.e. I punted) or there is some definite trigger that takes them across the taboo event-horizon.

A trigger. What drives these siblings into copulation? Maybe dramatic emotional crises. Sis's soon-to-be-ex turns asshole and terrorizes-humiliates-abuses her. Sis and bro are in the steam bath when she breaks down. He comforts her. She grasps. And the birds and the bees have their way...

I think probably because both want companionship. Protagonist has just been through a hell of a time which began after his fiancee cheated on him while Sister is wondering whether her marriage will work through the trial separation. So they're probably a bit lonely.