Marc Sievres had fucked and pimped the early-teenaged Stef before 1962, actually in circa 1960. Sievres is bound to be
at least 25 yo, more likely something around 30yo, at the time - in 1960. Clearly, not much younger. Therefore, Marc Sievres is born in about 1930, or merely a bit later.
This means that in 1985 when Marc Sievres sires Fabien, Sievres is around 55 yo.
My big consternation: when a gay guy is young, his erection may work with females. But in middle years, or as late as in his fifties, not so much. Lowered libido by years, decades, and a gay has not sufficient desire to successfully fuck a female and have orgasm. Wondering how Fabien even may have been conceived by a gay male who is in his fifties.