At the moment
At the moment I lack ideas, creativity and energy for this project. It's not abandoned but at the moment I don't find a start for the next steps. I'm sorry for that.
I think having only three people limits your options. I suggest a disruptive factor in the relationship, one or two characters, and the father would usually be the link to that factor since, due to his age, he'll have more life experiences.
A former lover/co-worker of his, for example: his boss, the owner of the gimnasio/swimming pool. a lecherous teacher, a plumber (a plumber always wins), a voyeuristic neighbor, a police officer, an IT technician, a psychologist, a producer of adult films, the owner of a male scort/naked cleaner company, or a cleaning worker at an academy or at their home. Even being a past connection only with the father could be interested in all the men in the family.
Also, a hidden fetish of the father's or the risk of eviction or jail.
Maybe any of the ones I suggested offering a job (with lecherous thoughts, of course) to Pablo. Maybe all can work together partially).
Even the grandfathers or... the biological mother, who transitioned and is now a big bearly man... But it has to be someone from outside the household.
