A phenomenon usually experienced by (female) virgins after their very first sexual encounter and the fact that may want a relationship whereas the guy may look at it from a purely one night stand point of view
John: Did you hook up with her?
Jack: Yea, but she kept talking about wanting a relationship afterward, it was like she had FCS (First Cock Syndrome)
Jack: Yea, but she kept talking about wanting a relationship afterward, it was like she had FCS (First Cock Syndrome)
by Psionic79 January 17, 2009
Get the First Cock Syndromemug.