ds is 15 and his gf also
she came round recently, they went straight up to his room. i went in there after a while, all fine, but when dh went there a bit later they were in his bed with the lights out.
i am sure they were just experimenting but what advice can i give.
another person i have told says they are probably doing it anyway, however looking through the archives i feel there are mnettrs who are bound to have better words of wisdom.