When you are in love, you accept them as they are. As they say, more than the first kiss, first fart is way important. You feel at home around them and you become home to them. Then can roll in dirt and you still won't be grossed out. Hugging them when they sweat or physical acts of love will no longer be gross. A study by the University of Groningen in the Netherlands found that feelings of sexual arousal can override feelings of being grossed out.