My niece moved in with us two months ago. She is my wife's brothers girl. Monica turned 17 in March. She is quite small at 5 feet tall and weighs maybe 100 lbs at best. Her body is very tight and firm. She has long brunette, straight hair and dark brown eyes. A small yet completely perfect ass and a proud standing b-cup breasts. Her pencil erasure nipples are exactly that. Pencil erasure like nipples. She also shaves her self bare down there. It is so hot and a sight to behold. Her fine folds just peek out a hint from her slit. How do I know these finer points? I have been fucking her for three days now. Pretty much any chance I get. I am 41 and in charge of the situation. I was laying on my bed reading a book when she swished by my door on her way to the washroom. A little angled from my bedroom door but Where my bed is and where I was laying I could see perfectly into the washroom. With the wife and daughter downstairs I decided to lean a bit over and see what i can see. She is naked! and has one leg on the sink counter as she rubs shaving cream on her crotch. Hey now! She grabs my blade and starts shaving her bit of stubble. Does a good job too. Then does her armpits. As she's doing that she notices me and starts and turns and shuts the door fast. I laugh. I get up and walk over to the door and knock. She opens it a bit and I say "we need to talk". She starts to apologize but I shush her and tell her to sit down. She sits on the toilet. I lock the door and walk up to her. I tell her to take her towel off. She frowns in confusion. I pull my sweats down and show her my cock. Her eyes get big and she hides her face. I grab her shoulder and tell her to look at me. She does but reluctantly. You did this to me so you have to take care of it. Or I can send you back home and tell your Dad what you did in front of me. I push my cock to her mouth and she looks at it, at me, at it again and then opens her mouth and starts sucking. Wow. She looks up at me and seems close to tears but is swirling her tongue around me knob and has her hand on my shaft and rubbing it. I tell her to remove the towel and she does. I play with her little tits and pinch the nipples. She squirms and I tell her to play with her pussy. And she does! Oh fuck! This is so fucking hot. I then tell her to kneel on the counter with her ass hanging off the edge. I almost came just looking at her. Kneeling flat on the counter with her ass up and out. So small yet looking like a woman's body. Perfect height for my 6 foot 3 frame. My cock looked so huge as I lined her up. She's breathing heavy, panting almost. I can tell why. Her pussy is hot and wet as my head spears her. Nice and very tight. I push and she hisses but does not pull away. Her hot wet vice envelopes me. So snug but juicy. I tell her to play with herself and she does again. I just stay still with about 5 inches in her. Two and a half more to go. So tight though. She's not a virgin, She has a bf and Her mom told the wife she was on the pill cause she was active but damn she was tight. Her bf must have a small one. LOL. So after I settle down and shes diddling her self I pull out a bit and push in a bit more cock. She sighs deep and I shush her. I pull out a bit again and sink myself in her completely. She starts cumming and shaking. I start pumping and relishing the tight hot cunt spasm around my cock. 8 or 9 pumps and I start to cum deep inside her. She is biting her hand and milking me. I feel her up and I soften and pop out of her. She lays like that for a bit, trembling. I pick her up and kiss her deeply. She returns it. I want more of that I tell her. Okay she says. I kiss her again and exit the washroom. I was on the bed when the wife came up to tell me that supper was done.