[MF] Got laid by young girl after boardgame

I just broke up and went to party/board game meetups during weekends for fun. This weekend night, I noticed a young girl who played a couple same party/board games with me. After the party was over I chatted with her while we were walking out. It was subway shopping mall outside and I wanted to eat, so I offered to treat her as well. She was a new grad and I had a decent job. We chatted while eating at the fast food place. After we finished I took subway home.
While I was brushing my teeth I got her calling me, saying she’s out at my subway stop and couldn’t get anywhere because it was last train. She said something like she came to this stop to see friends etc, but now I’m looking back, how dumb I was to not realize she made this up so to spend the night with me!

So I went out pick her up (my apartment was 3 min walk away from the subway stop) and brought her to my place. I never met such proactive girls so was a little timid. But after we both took shower it became clear we’re gonna share a bed.