[MF] My girlfriend lets out her slutty side

So this happened today and I still can’t believe it. My girlfriend (F19)just got back from vacation which I (M21)had to leave early from for work. We hadn’t seen each other for probably about a week and a half and she insisted she didn’t want to have sex. I was feeling really horny but she’s my girlfriend so I just let it go. It was about 98 degrees out so we thought we’d go swimming in my parents pool. She changes into a skimpy orange and grey 2 piece. We play around in the pool and down a couple beers, and I end up holding her so she can float around. Her being tipsy started to to splash around and my hand rubbed her pussy a bit. And immediately she gave me the fuck me eyes. I asked if she was horny and she just nodded with a huge smile on her face. So I reached my hand down to start fingering her and ask if she wants to take this inside. I almost passed out when she said no right here is good, in the pool. So I pull off her bottoms and my trunks and pick her up. Had to be gentle because her pussy was dry on the outside but soaking inside but once I was in she was doing things she’d never done. She’s starts dirty talking telling me to fuck her like the naughty girl she is. I tell her I love seeing her act like a slut and tell her to show me how much she loves dick. She just starts pushing herself up and down moaning and trying to keep it quiet to not alert the neighbors. I’m feeling confident and snake a figure along her asshole. And she went for it she moaned and said just be gentle. So we fucked for probably 20 minutes before we wanted to go inside and finish our work. We had sex 6 more times after that, plus 1 more in the pool again. Sorry if this is badly written just trying to write down what I remember. Definitely one of the best fucks I’ve ever had.