Losing virginity in car

Samantha
I feel ready to have sex with my bf, and I've been thinking about it for a while now and the time feels right. The only problem is that we don't have anywhere private to do it in. I live with my parents and he has roommates. We've already messed around a lot in the backseat of my car giving each other oral, so I don't think havig sex would be too much of a stretch. 
But this will be my first time having sex and I was hoping for something a bit more comfortable than the backseat of a car. Any suggestions?