Well Germany is a close call:
Germany
The age of consent in Germany is 14, as long as a person over the age of 21 does not exploit a 14?15 year-old person"s lack of capacity for sexual self-determination. In this rare and special case, a conviction on an individual over the age of 21 requires a complaint from the younger individual; being over 21 and engaging in sexual relations with a minor of that age does not constitute an offense in and of itself. Otherwise the age of consent is 16, although provisions protecting minors against coercion apply until the age of 18.
As specified by Sections 176 (Sexual abuse of children) and 182 (Sexual abuse of youths), which read:
? 176: "(1) Whoever commits sexual acts on a person under fourteen (14) years of age (a child) or allows them to be committed on himself by the child, shall be punished by imprisonment from six months to ten years [...]"
? 182: "(2) A person over twenty-one years of age who abuses a person under sixteen years of age, in that he: 1. commits sexual acts on the person or allows them to be committed on himself by the person; or 2. induces the person to commit sexual acts on a third person or to allow them to be committed on the person by a third person, and thereby exploits the victim"s lack of capacity for sexual self-determination, shall be punished with imprisonment for not more than three years or a fine. [..] the act shall only be prosecuted upon complaint, unless the prosecuting authority considers ex officio that it is required to enter the case because of the special public interest therein. [..] the court may dispense with punishment pursuant to these provisions if , in consideration of the conduct of the person against whom the act was directed, the wrongfulness of the act is slight."
Relevant paragraph of the German criminal code (in the version of April 1, 2004; last changed by a law in 2003.)
German Criminal Code (out of date) German Criminal Code in Spanish (translated by Claudia L?pez Diaz)
the act shall only be prosecuted upon complaint
So as stated becasue the 15 year old in my case (and the 17 year old) didnt go to the police to make a complaint it would seem not a crime under German Law, but I can see where because its possible to prosecute someone for sex with a 15 year old in Germany you can say the opposite as well.