Simpsons fans may recall Homer's temptation when a sexy redhead became his new co-worker. To Homer's amazement, she liked cheeseburgers, a quick nap before lunch, foot-long chili dogs, whipped cream straight from the can, raspberry swirl doughnuts with a double glaze, drinking duff beer, and watching TV in bed. He tried desperately to avoid her at work, but when they went to Capitol City to represent Springfield Nuclear Power Plant at the National Energy Convention, Mindy almost seduced Homer into cheating on Marge.
Homer was desperately tempted, but, a romantic at heart, and completely devoted to Marge, he stayed off his lustful urges. Mindy, unfulfilled, however, wasn't going to stop there. She turned her flirting to Marge.
Marge loves Homer plenty, but in their relationship, she's the one who often has offers and options. Homer is lucky to have Marge; he married up. Most people, especially Marge's family, thinks she married down. Perhaps some of this has subtly encouraged her to look beyond their marriage sexually. Homer is loving, but simple. He loves the familiar and the routine. Marge is far more intellectual, and wanting to expand her boundaries. Homer gains new experiences by accident; Marge seeks them out.
So it's no surprise, that just as Homer ended up sending Mindy out of his bed, she made her way into Marge's. Things were fine, until Homer came home from work early, and drunk, and caught them. Marge just about freaked out, because although she'd strayed a few times, she'd never been caught. The absolute last thing she wanted was to hurt her Homie.
Marge was about to leap out of bed and try to explain, but Homer was so loaded, he just mumbled something incoherent like "hi pretty ladies," swerved, and then stumbled downstairs, where he passed out on the couch. If he actually registered what was going on, he never let on. When Homer drinks, large amounts of time are just fuzzy blackouts. Marge got lucky.
