Can't understand the joke

[Aquatarkus]

Hello dear friends,

 

I'd like to understand the humor in the following phrase:

 

今天班主任说：你们都是高一的学生了，谈恋爱很正常，但也请你们收敛点，不要到时候体检班上多出个人来

 

Today the teacher said: "you are all students, to talk about love is quite normal, but wait a bit, don't make a medical examination in class (???)"

 

I'm puzzled by the last part of joke

 

Please clarify

 

[edelweis]

on the day of this class medical exam, there mustn't be any extra people

(fetuses or babies ?)

[Aquatarkus]

In other words, there mustn't appear any new people in this class (i.e. to be born)? or what extra people do you mean?

[lips]

as #2 said

[Aquatarkus]

Thank you )

[coolnicholas]

falling in love, and make love then pregnancy

[Aquatarkus]

sorry but what pregnancy got to do with the original phrase?

[skylee]

Sex -> pregnancy -> baby in the womb -> 1 more person in the class discovered during medical examination (體檢班上多出個人來）

[陳德聰]

It looks like an issue for understanding arises if you don't realize that 谈恋爱 means "dating".

Today the teacher said: "You're all high school students now, so it's normal to start dating, but please exercise a bit of restraint. I don't want to find any extra people in the class when the time comes for medical examination!"

[Aquatarkus]

Thanks for your comments, they are all very helpful. Special thank to 陳德聰, your explanation is the best and very exhaustive.

[GaHanna]

Thanks for bringing this up.

 

I was a little puzzled too so before scrolling down I asked my wife to read and explain, but she sent our son to this computer as she was a little busy. He is six and  could read up to 谈恋爱. Mammy became available so she had a look and said "not good" (in reference to our son). A little later she explained the joke, as well as our esteemed posters above.

 

 

What really struck me was how matter of fact the statement is. Middle/High school? Wow. I kind of like it.