A Teen with a wide pussy

I have always feared relationship with younger girls, but lately a 20 years old , my friend niece sent me an sms saying " I don't know why, but I cannot stop thinking about you". I tried everything possible to avaoid her, but more I would push her away, the more she would be insisting to meet me. Two weeks ago, she came to my office as it was about time to close.
I had her wait until the other employees have gone, as I asked her about her day, sitting in front of me, she said " i have not come here to talk about my day" so tell me why you are running away from me" , "so you dont like this or you're not a man" as she spread her legs showing me her shaved pussy.
Wow! I could not believe it! and now I dont know how to get her out of my brain... the relationship is just going crazy, we are having sex everyevening for thirty minutes as she leaves school for home...
What is funny is that her uncle, my friend always come to my office as she leaves and she tells him she comes to check her mails before going home... and he believes...