Answer:
No there is not. There is very little to no changes that occur when you lose your virginity. The only usuall change is the breaking of the hyemen. Althouth it is very common for the hyemen to already be broken before the first time you have sex. This can happen with any big bump to your pelvis. This is very common with horse riders.
A.
The hymen can indeed be restored by plastic surgery , if you don't mind the expense and discomfort.