Ok to actually finger a girl start off by rubbing/massaging her vagina OUTSIDE the trousers/knickers whatever! then go into the trousers and you can do a mixture of things but you first need to make her wet to actually go up her vagina. you could rub/stroke the top of the lips of the vagina. also an amazing turn on spot is just where the outerlips start there is a nerve which you can rub from side to side or in circles but sometimes this can be a bit painful so remember to pay attention to her. also at the top(just inside the vagina) there is skin that is a bit like the skin on your forehead.

If you rub this in circles this is also a great turn on spot! be careful when actually going inside the vagina and dont jump in straight away with two fingers as you dont know how tight she is! and the most important thing is to be gentle! the vagina is a sensitive place and if you have long nails make sure you cut them so you dont stratch her. and always remember to pay attention to her to make sure your not putting her in any pain etc.