Ranma goes to see Dr. Tofu for a routine checkup! ... and ends up getting pregnant! :)
Ranma: Dr. Tofu, I just came in for a routine checkup... I didn't know you felt that way about me... even though you know I'm a guy.
Dr. Tofu: Kasumi, I've finally managed to get over the weird nervous behavior I get when I'm in front of you! Now I'll be able to do what you've always asked me to do!
Dr. Tofu: We're going to have a whole bunch of kids!
Ranma: Are you even listening to me?
Ranma: What do you mean, “Kasumi”?
Ranma: —Does he really think I’m Kasumi?—
Ranma: —What if he got me pregnant?—
Ranma: What do you mean, “a whole bunch of kids”?
Ranma: Damn it! That perverted old man must have given Dr. Tofu the wrong magic potion!
Ranma: I’m in big trouble! What am I going to tell Akane and my dad?
Ranma: ...though I did like it... :) Dr. Tofu knows how to treat a woman.
Ranma: I’ll probably let him give me a second dose of his treatment tomorrow. :)
Ranma: Damn!, I’m turning into a real slut!