Let me redefine your termsAnd you clearly didn't read the end of my statement. (or it may of not updated to show there)
You literally don't take into account of sabotage, which is far more prevalent than I'd like to hear. People can have sex, and not consent to a child. You literally need both parties to consent to that. With what I mentioned (child trapping) I just essentially proved that two parties can consent to sex, and ONE of them decides it's time for a child without proper consent. Which would count as "irresponsible sex" because one of the parties was acting responsible, and the other was not.