Me and my girlfriend were on vacation together. It was the beginning of the relationship, we were together for a few days, but we knew each other about six months before that.
On vacation, as it is on holiday - out the window sun, 40 degrees and a sea of alcohol. Our friends did not know that we were together, so during the day we behaved like friends, and after the whole day of staying at a distance we had an unearthly desire for each other. Of course, we slept next to each other, but there were still many friends living in the room. As soon as the light went out, we waited for a few moments to make sure that everyone fell asleep and started to cuddle.
That night we were very tired, but we still wanted to take advantage of the moment that everyone else was sleeping. I took off my girlfriend's pyjama shorts, put my hand in her panties and started acting. It is worth mentioning that we were both drunk and had a long day behind us. After a few minutes of action I couldn't stand it and... I fell asleep. And my finger remained where I put it.
I don't know how much I slept like this, but imagine my girlfriend's face when she woke up.