This joke i got from my friend Zanryu
So this hot girl walks into this young doctors office for a checkup, he thinks to himself "Wow! This girl is really hot!" So he asks her to take off her clothes. She does, then he starts massaging her leg, he asks "Do you know what I'm doing?" She says "Yes, checking for abnormalities." He says "Good." Then he starts massaging her breasts, he asks "Do you know what I'm doing?" She says "Yes checking for cancer." He says "Good." Then he starts doing her, he says "Do you know what I'm doing?" She says "Yes, getting AIDS, that's why I came here."