Is AUTHOR wrong in the post ? POST : Tldr below. 

My wife and I just came from a romantic night where we watched the opera. When we got back, she went to the toilet. I sat in the room to settle down before I prepare to get myself cleaned up.

While I was undressing myself, my wife walked in with sexy lingerie. Hot af, teasing me. I was already in my boxers, so I decided to drop them and just jump on the covers that was in bed. Spread out like a starfish awaiting sexy time.

She jumped on me and basic human reflexes, to protect my balls, I closed my legs and she was mid jump. She tried to avoid landing on my legs and instead, landed shin first on the metal side of the bed.

In that sexy lingerie, she cried and I panicked. I ran and grabbed some ice for her shin. She blamed me for closing my legs because she said she'd never hurt me but I indirectly hurt her by closing my legs, and by trying to avoid me, she hit her shin on the side of the bed. 

I was in two worlds. There she was, sexy as sexy can be but wailing and shivering in tears. I found the situation humorous so I chuckled a little bit and she got upset because I found it funny that she got hurt. When I finally saw the bruise after a few minutes of ice, the leg had a dark spot. It swelled and bruised. She couldn't walk properly to the toilet so I helped her clean up and sent her to bed. I showered after she's in bed. Now she's sitting down watching a movie on her laptop while complaining that it's pain. 

I think she's forgiven me but I feel really bad and I think she might have gotten a hairline fracture across the shin. Any medical experts can tell me about shin injuries? Symptoms? 

Tldr: About to have sex and in a freak accident, Wife got injured and I accidentally laughed at the situation. 