How long? (bit naughty)

"You'll be fine" the doctor said after finishing the young woman's surgery.

"But," she asked "How long will it be before I am able to have a normal sex life again doctor?"

The surgeon seemed to pause and his face reddened as a small tear ran down his cheek from the corner of his eye. The girl was alarmed.

"What's the matter, doctor? I will be all right, won't I?"

He replied "Yes, you'll be fine. It's just that no-one has ever asked me that

Spoiler:

after having their tonsils out".