I slept with my cousin and don’t know where to go from here

I (m23) had sex with my cousin (f23) a couple times. I need advice on where to take the relationship from here.

To start at the beginning, a couple years ago, my uncle invited me to his wedding. At the wedding i was making eyes with this one girl the whole night. At the reception we were dancing together and having a great time. After the wedding i go to my uncles house to watch over his pets and my little cousins and she is already there. Turns out she is the daughter of the bride. There was a brief hesitation in me wanting to continue things but we had such a great time. I say she can take the room, I would sleep on the couch. A couple hours later she comes downstairs because she feels so alone in the big bed, so i say she can take part of the couch. She starts cuddling into me, and this starts to give me a boner (it had been a while since I had gotten any). She notices and starts grinding on me more. My hands slides down her pants and she is soaking wet. We start making out and taking off each others clothes. I eat her out and she quickly cums on my face, which turns me on even more. We end up fucking multiple times over the course of the night. It was amazing. But then we didn’t talk again for a while. A year goes by and there is a huge family vacation that takes place. She happens to be one of the ones invited on the trip. We start drinking and talking again and things spark back up. Later that first night we are in my room just talking and catching up when i notice looking at me with eyes of lust. I lean in to kiss her and she jumps onto me. We have rough, passionate sex throughout the whole night. And a couple more times during the trip when we got some alone time. To current day, I have a girlfriend, but my cousin reached out the other day. Saying she was thinking about us and the “good times”. I told her I love my girlfriend, which i do with my whole heart, but my dick is saying it wants to ravish my cousin again. Please give me some advice.