preggos are really horny all the time so its easy pickings. I agree with the fellows who said its better to hit the ones you've knocked up yourself simply out of dignity and self-respect.
Absolute rule.
Nevertheless,,, fully hormonized by pregnancy female fella,,, a good source of hormona and phehormona,, must get hit to get my birth canal streched and massaged,,, a process genetically hardcoded and put in place for a reason which otherwise has no biological meaning.
Mother Nature = The Grand Architect of Carbon-based life form (of peace)