My girlfriend made me orgasm and kept me inside her while she started masterbating. It was so hot I started getting hard again. She orgasmed and we went at it again without me ever leaving her. 20 minutes later I orgasmed again and ejaculated just as hard with just as much cum.
I've never understood my own refractory period, but usually I go about 20-40 minutes of sex before I cum and then I need and hour or so before I can get hard again.
What happened here? Is this common? Does it happen on its own or can I work towards doing this again?