My heart hurts. Tell me a joke, will you

A man went to see his family doctor. He asked, doctor, I'm getting married, but it's the first time for my girlfriend and me. Can you tell us what to do? The doctor watched the man grow up, and when he heard this question, he was a little uncomfortable. He looked outside and said, Look over there, have you seen two dogs in the park? See what they are doing? Go home and do it. Two months later, when they met again, the doctor asked: How was sex? The man replied, nothing, but it's really cold to do it in the park, and someone will peek.

Hee hee, actually, I found it online. I still want to continue to live a sad life happily.