So... I had a thought related to previous mentions of other posts about Robert sleeping with villains for information. And I had the thought of Robert thinking he was infertile due to exposure to the Astral Pulse(bro sees esoteric power source, thinks Radiation). But in actuality, it made him extra fertile. And a portion of the villainess' he bedded had kids, the ones that didn't took the day-after pills.
How many bastard babies did this guy have running around! From orphanages to still living with their moms!
tbf Robert strikes me as someone who had safe-sex drilled into his head at a young age - mostly to prevent STIs and villainous illegitimate offspring (Robbie was very firm on the matter).
One of his gut responses to Invisigal telling him about her sex dream is "I hope I wore a condom." So he has safety in mind.
Depending on his "equipment", he could have a different means of protection in place.
However, he's still reckless at times.
In the "Toxic Baby au" for example; sleeping around with a certain Red Ring lieutenant equals a pregnant Robert.
Sleeping around with people as an AMAB person however?
He wrapped up like a sandwich. He ain't risking it!
Even if he assumes the Astral Pulse nuked his nuts, Robert knows all it takes is a fertility charm or a broody villain to end up with his own squad of Mordreds.
There would be ONE exception though...
Robert thought "ex-foe I put away" would be a good lead to finding info on Shroud, but the fire-wielding arsonist knew nothing. He was going straight ("But not like that.") into heroism - Phoenix Program you know?
Robert had effectively seduced the ex-villain enough that he went "ah, fuck it" and rolled into bed after him anyway.
There was one major speed bump though.
Fire powers + protection = broken rubber. Robert seriously weighs his options.
Flambae: "Look Bitch, you want melted latex in your pisshole? Cus I'm happy with either."
Robert: "Alright, you made your point. No risks on your end?"
Flambae: "My body nukes any invaders. Don't worry about it."
(*note: Flambae didn't realise he wasn't 100% pregnancy proof. He'd been told in past medical screenings that his higher body temp would kill off any sperm cells/embryos. So he though he was infertile.)
Leads to this sort of situation.
Robert awakes from his coma to see; a pissed-off fire hero holding an almost-newborn baby. Beef is nearby, clearly spoilt beyond measure.
Flambae: "Mashallah, it's a miracle. Your normie dick broke through my fiery defences."
Robert, so very confused, and on pain meds: "Oh word?"
Mecha Man reveal happens a Lot earlier in this situation.
The only reason Flambae doesn't torch Robert right there in the hospital room is One: he looks too pathetic rn, Two: waste of good dick, and Three: He makes adorable babies.
Robert curses his own unpredicable fertility.