Gorgeous Niece

My sister in law went crazy with her 16 year old daughter for having sex with her boyfriend and not using protection,I didn't want to hang around and quickly left, following day i heard a knock on my door and opened it to see my niece standing there when she should of been in school,she had her school shirt on with buttons undone down to her bra she had a skirt on that was way to short for school and white knee length socks, she's apologizing for the fight she had with her mum, everything was fine for a couple of hours then she changed she starts talking about when her mum caught her and the reason they didn't use a condom,she goes on to tell me that they did have one but she fucked up trying to put it on for him,I couldn't help but laugh at that and said it's easy,she bit back saying oh yeah if it's that easy then show me,I told i couldn't but she wouldn't stop and i eventually agreed after she promised it's our secret,I said to her she has to come upstairs, she sits on my bed i drop my jeans and im already aroused and rolled one on at that moment i was fucking horny,I took it off and she asked to try and i thought fuck it just let her,she done it perfect and even jerked it a few times after,I asked her why did she stop and it was because she thought it's what i wanted,she was mistaken i told her i wanted more than that,she asked what else and I said for her to remove her knickers and hover over me and then lower herself down as i held my cock still for her waiting pussy,it was fucking tight i could tell by her face she hadn't had a cock that size before,she's slowly bouncing up and down and then tells me she knew i wanted her by the way ive looked at her,so she wanted to play with the big boys did she so i turned it around i quickly chucked her off as she bounced on the bed with her legs open i was on her in a flash ramming my cock hard in her,I put all my weight on her and kept smashing her c**t fast ,she cried out with each hard thrust the bed is banging against the wall,I stopped after a minute to remove the condom and seen how red her pussy was and didn't waste anymore time i was back to fucking the prick tease,I was giving her everything i had for 10 minutes and she yelled out as i began filling her c**t with cum,I was drained i couldn't move at first she was pinned down,we didn't speak right away i watched her get dressed then she said something i didn't think about she said it's lucky she's on the pill,she stayed for another 30 minutes and left,I was happy if it was just a one off but thankfully she wanted more.