(Newser) – Looking for a longer romp in the sack? Find yourself an overweight partner. New research shows that men with excess body fat last longer during sex—an average of 7.3 minutes compared to 1.8 minutes for men with lower BMI scores, the Daily Telegraph reports. It may sound manly, but the tendency is due to the fact that men with higher fat levels also have higher levels of a female sex hormone that causes them to last longer.

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