Few years ago I was with staying over at my cousin sis house for the night as I had work the next day close to where she lived. We are both the same age so we get along quite well. We ended up drinking a lot that night but there was nothing sexual at the time just enjoying banter about other family members we both hated etc. Towards the end of the night It did look like she was quite drunk so we decided to call it a night and get some sleep. We both slept in the bed just coz it was a queen size and since we were cousins she didn’t mind. About an hour in my sleep I work up with a raging boner and could not stop thinking bout sex. Then the thought of her next to me turned me on even more and I started to think of me doing stuff to her. Unfortunately I gave in to my urges and started to feel her up. She didn’t seem to wake up but as I stared feeling her more and more she started to moan. I was not sure if she was awake and pretending or in her sleep. My urges got a little out of control and I slipped a finger inside. After a few minutes there was a sudden fear and I stopped it but still wanted to jerk off . Which I did .
Source: reddit.com/r/sexystories/comments/sg30xw/fingering_my_cousin_sis