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Lise

OK, OK, I give in - why is it a sound rational choice to favour fellatio?

Seamus McCauley

Hi Lise

According to LoL, two reasons: reduced chance of various diseases and reduced chance of pregnancy.

It's the latter point that the study cited was able to test for: because different states in the US have different rules as to whether a minor can get an abortion without parents consenting or being informed, and because these rules were introduced at different times, they form a handy natural experiment as to whether teenagers respond to these incentives by changing their behaviour. Needless to say, they do - parents who campaigned for the right to be informed if their daughter sought an abortion are doubtless delighted to know that the net effect of their effortd was to encourage her to give head, not to practice abstinence.

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