My second cousin, Emma, was born only 8 days after me so we've been fairly close our whole lives, however in our teen years we kinda grew apart a bit.
When we were both 16, in February of 2011, Emma came to stay with me and my Dad to get experience working at a job nearby. Now, Emma has always been really shy, so what happened on the second night surprised me.
We were in our room, I was in my bed and Emma in a small fold up bed on the floor. I was trying to go to sleep, when I suddenly feel Emma lie down beside me. I went to turn my head but she put her hand on my mouth, then turned my head and kissed me.
I felt her move one leg over my body and she rested her head on my neck, then started rubbing her crotch on my leg. Realising what was happening, I put my arms around her and we basically started dry humping each other. I kissed her again and put my hand on the top of her pyjamas, which she then lifted and actually pushed my hand down.
All kinds of shit went down that night. I fingered her, she blew me and I ate her out.
The next day was a bit awkward. We didn't talk about it, but actually we found it much easier to talk to each other. Ever since then we've actually been much closer.