Hi Nickey
Firstly... what size are you at the moment ? in compared to your frame.
If you are happy to have them enlarged, I'd be serious to make enquiries with your doctor, write down all the concerns you have. I haven't heard that you do loose sensation, but if the implantation goes wrong, then it will be a disater .. I'm not against any body enhanced surgery, but please have a good long hard think about it, and weigh up the pro's and cons first.
Good luck in what you decide, and your lucky to have a boyfriend that will pay for something you really want.

..if you decide to have it done.
Ginger