Friends daughter.🤦🏻‍♂️

So like a month or 2 ago at my buddies. We always hold garage parties I was” uncle” to all his kids. Never once was anything weird or thought of in any sexual way… well one night we’re all there partying and I go in to use the rest room and I goof off with his 2 kids and tickle them and what have you but his oldest is in her room being super anti social. So I go and knock and go in and she’s just like chill looking annoyed and I did what I always do teased her and then tickled her. Tho she hates it cause she’s not a kid like the other two. But I sit down and chat and she’s just upset with life and being bored and what not so I tickle her more and she like climbs on me and tickles back and I think nothing of it until she starts to rock / grind while she does it. But ok maybe just how she’s moving… and then literary out of no where she kisses me and I mean a long kiss. And then gets nervous and stops but my dimbass went back in for another!!! And yea so it was a crazy stupid night. Huge secret!!! More happened but still don’t know how to feel about it.