Back in the olds days ...

... I was at a girlfriend's house and we decided to watch a movie in the den off the kitchen. There was only a louvered door separating the two rooms.
She had changed into a long flannel nightgown and we cuddled under a blanket to watch the movie. Her parents were watching TV in the kitchen about 10 feet away.

I started caressing her leg and eventually moved up to her clit and pussy. I continued to finger her throughout the entire movie, only stopping once, when her mother came in to bring us some snacks. My girl was in ecstasy for about an hour and an half. We didn't take it any further since her mom was a night owl, and would be up very very late. We just slept in the den that night.

But in the morning .... we were both sooo horny when we woke up that we got naked and started messing around right away. We figured her mom was now fast asleep and her dad had gone off to work. She came within 2 minutes when I went down on her, which usually took at least 10 minutes, normally. I was hard as a rock, and giving her such a great orgasm ensured that I was maximized. Right after her orgasm she told me to fuck her, so i did. She wrapped her legs around my back and used them to help me thrust deeper and deeper into her.

It always paid to keep condoms on me when I was around her.

The only other time anything like this happens now is when my current girlfriend and I stay over friends houses. We can't keep our hands (and other things) off each other, so we just try to keep quiet.