Awkward but hot

So at my family Christmas I had an awkward moment with my uncle, Well...I call him my uncle but my mom is his wife's cousin so whatever that makes him to me, I have always had a slight crush on him ever since I was a little girl and coincidentally I turned 18 just months before Christmas so it all is fine but still awkward af.
So me and my two cousins were doing a trend we seen online where you put your arms and legs in the sleeves of a hoodie and hop around, We were in my cousins basement where Christmas was being hosted and the 3 of us were in dresses, I am 5'3", 120lbs with D cups, Brunette with blue eyes and a 100% completely bald full innie ** with pink puffy lips, Yes I am slightly conceited about my ** and it really is basically perfect and is brand new if you know what I mean except for letting my boyfriend use 1 ** at a time or his tongue and a light pink little backdoor.
So anyway we were a few drinks in and doing this trend and my uncle came down to grab something for upstairs and started laughing as he watched us.
As luck would have it I am apparently not as agile as my cousins because I tipped over face first, They both were laughing at me and at that moment I remembered I had not worn any ** and had removed my tights to get into the hoodie so...I was face down on the carpet, Both my cousins had fallen over laughing at me and my uncle was standing 6 feet away right behind me.
Now if you have not seen this trend let me break it down, My arms and legs are in the sleeves of the hoodie so I am on my knees, Face on the carpet and holding my ankles basically folded in half so everything was about as wide open as could be and my short..ish dress hid nothing.
So my cousins are busily trying to free themselves and not really paying attention to me so my uncle asks if I want some help, I look back and could feel my face burning red as I squeaked "Yes please", My cousins had gotten free and went upstairs laughing hysterically as my uncle rolled me onto my back, Helped me free my arms and legs and then I looked at him as I was laying on the floor and I just went for it, I looked right at him, Flat on my back and spread my legs, He looked right at my ** and I gulped then said "Thank you", He cleared his throat and said "you're welcome". He reached out his hand to help me up and I put my hands on my inner thighs, He looked down again and I had an involuntary spasm in my groin area and I think I came a little because afterward I was soooo wet I had to go wipe myself but I grunted and he bit his bottom lip but then I got embarrassed and reached for his hand, He pulled me up and I stood in front of him, I still had his hand and placed it on my cleavage.
He gave the top of my b00b a squeeze then said "***** Nope, Nope...So wrong" and I bit my lip but then we heard people coming down the stairs so I went to the bathroom to clean up and like I said was literally dripping down my inner thighs, After I had gathered my bearings and came out he was gone and I was not alone with him at all after that and haven't spoken to him so next time I see him should be interesting.