2014-08-03

A vertical SMBC comic. A young man with reddish-brown hair asks his bald, glasses-wearing father a series of increasingly uncomfortable questions about his parents' sex life. The father calmly answers each one with the same physics-style formula, 'Total sex remains constant,' which he frames as S = f x K (sex equals frequency times kinkiness). He explains that when the son's presence forced sex frequency down, kinkiness went up to compensate. The son recalls disturbing childhood clues -- shouting in the bathroom, a box of handcuffs under the bed, his toy submarines vanishing one by one -- and to each the father just repeats, deadpan, 'Total sex remains constant.' Votey: a hand-drawn panel of a couple in bed. The woman says 'Let's skip sex tonight,' the man asks 'Why?', and she answers by rearranging the equation as K = So / f (kinkiness equals total sex over frequency), implying that skipping a night now will require extra kinkiness later.