I was chatting to a male aquaintance and I asked how his DDs were. One is almost 3 the other 3 months. I asked. flippantly "they keeping you up at night?", to which he relied "no, (pause) but they are keeping XYZ (his partner) up, chuckle". There followed an awkward silence where he could tell I wasn't too impressed by what he said. I just nodded in silence.
I later wished I'd had a really good rebut to his comment.
I know he hasn't done anything heinous or even unusual but what would have been a good feminist retort to his remark?