Why is 'he' covering?

"So if he wants to be naked, why is he covering himself?" Mike asked, noting that Vanessa was cupping her crotch.

"Oh, he's been hung up on how little his wee wee is." Lauren quickly improvised a narrative. "I think maybe some other boys were picking on him for his size."

"Aw, don't worry champ." Mike said, condescendingly patting Vanessa on the head. "You don't have to worry about things like that until your much, much older."

Vanessa couldn't believe this hot guy not only mistaken her for a boy, but was now reassuring her about the size of the dick she didn't even have!!! She was speechless, baffled by this strange scenario. Her identity felt fractured. She tried to hold on to her self image. The real her was a tall, sexy woman, not the dumpy, boyish twerp she now appeared. Only she was trapped in this new form... so was it her? These questions ate at her mind and ego.

"Anyways," Mike said, turning towards Lauren. "What are you up to? Want to hang out later?"

"That sounds great!" Lauren grinned. "Let me give you my number!"

While the shocked Vanessa watched in outraged annoyance, Mike gave Lauren his number. He then turned and continued his run with a friendly wave.

"Well, how about that?" Lauren grinned down at Vanessa. "I got his number, you got mistaken for a boy!"