"I wish I knew how girls deal with these things"
Unbeknownst to Mikey the stone had fallen out of his pants pocket when he took them off and just so happened to be brushing against his toes at that moment.
Before Mikey's eye his crumpled up jeans get replaced by a discarded skirt and purse. Suddenly his mind is flooded with new knowledge and experiences, from that time she freaked out from having her first period and her mother had to explain it to her, to that time Zoe gifted her a small discrete vibrator after accidentally walking in on her masturbating or even having to bum a pad off of her best best friend Alexis cause her period came a couple days early.
"Wait her name is Alexis?" Thought Mikey suddenly realizing that more than she initially realized had changed.
Yes the senior he had always had a crush on was now her best friend, not only that they were now classmates.
Mikey has gone from being an 11 year old boy to a 14 year old girl.