A team of scientists in Concordia University have done experiments which show that male rats can be conditioned to be more likely to ejaculate when female rats are wearing little jackets.
The first experiment involved twelve virgin male rats undergoing fourteen "multi-ejaculation trials" with females wearing little jackets.
A second experiment showed an even higher trend of males preferring jacket-wearing females.
When two rats want to get it on, the male will come up behind the female and grab her. This means if she is wearing a jacket the male would feel this with his whiskers.
Each time my partner wears lingerie [a jacket], I'm going to have sex.