Still holding on those out - moded ideas of sex as «planting and reaping the fruit of one's (read: a man's) loins». (nakedpastor.com)
Since the mere idea of sex doesn't bother you, random strangers making sexualized assumptions about your breastfeeding don't really bother you, either. (romper.com)
The idea was to use the standard idea of sex determined by sex chromosomes — XX for female and XY for males — and to ask what would happen if culture affected the different numbers of each being produced. (scientificamerican.com)