My Friend's Teenage Daughter

I am divorcee and have gf who is younger to me and has teenage daughter. Many times I stay at my gf's home for few days as I work in different city. When we are together it's like family and many times her teenage daughter come in our bed. At times in morning as she sleeps with her home usually.

Once my gf woke up early and I was asleep and left her daughter and me on same bed as her daughter came to sleep in out bed. I had morning wood most of the days and I always hug my gf in sleepy way . And I hug the teenage daughter. I felt it different but I pull her and let my hard on rub over her thighs and also hide my face on her boobs and kiss her neck . She was asleep I think and we slept like that for morning hours but when she woke up she realise that we are cuddling and my hard on is between her thighs . We remain awake like that . And did not move feeling embarrassed and then she ran away quickly in another room. We had odd time for 3 days . But i miss the soft touch and her body and started making fantasies. After I went back she has open up to me a lot and feeling close to me .