Seriously, if you do the math out you get sexy bonuses that easily outstrip other strategies like buying a stupid sports car or impractical big truck, for essentially zero dollars, minimal effort AND as an added bonus the people you increase your sexiness stat with the most also happen to be the kind of person that is the best to sex with (a genuinely kind person who cares about your pleasure as much as theirs, not someone who just starfishes and calls it a day).
You basically get a free asshole filter thrown in, no extra cost. Crazy deal, and you can drive around an old beat up corolla that costs nothing to maintain, wear shit clothes and still be absolutely demolishing the competition.