This was my senior year of high school. My girlfriend at the time was really into rough sex and also almost being caught.
One Monday morning before school I drove over to her house at about 5am. School started at 7:45am giving us just enough time to get freaky. So I sneak into her house and into her room without her family hearing (I knew where the spare key was hidden). I slip into her room and kiss her awake (She knew I was coming over in the morning but wasn't sure as to when). As she wakes up, she gets insatiably horny. She grabs me and begins to kiss me. I slip my hand into her pants and start to gently rub her clit. This does the trick and within minutes she's tensing up and cumming all over my hand. After she came she stripped herself and then myself down. I'm standing up next to the bed as she starts to blow me.
Right as she begins to deepthroat my dick, her dad knocks on the door to say goodbye before he goes to work. Fortunately I had locked the door when I entered. She begins to rub her clit at the prospect of being caught by her father all while still sucking on my cock.