Its valentines day and my girlfriends birthday in four day so on the weekend I wonted to go over with my dad but my mum says the only time I can go is after tennis with my nine year old brother for 15 minutes max:mad: :mad: :mad:

She is just trying to keep her "little boy" just that.
It's a natural thing parents do and it'll change as you get older and more independent.
Just talk to her, tell you mum that you want to spend time with your girlfriend and hopefully she will think of an idea

How old are you?