2nd Time Giving NSA BJ

My gf and I were renting an apartment together. I had the day off, she was working an afternoon shift. I posted an ad on Craigslist for a No Strings Attached BJ. This was the second time I'd have a stranger over to suck and swallow while my gf was at work. He was a nerdy type not very attractive who came in and unzipped his pants right away and told me to get to work. I nervously yet excited did as he told. After 5 minutes or so he lifted me from my knees and pulled down my shorts. I didn't expect any of this. He grabbed my dick and pulled it on his, stroking both off us with one hand. After about a minute of that, he pushed me back to my knees and put his dick back in my mouth. He face fucked me and came relatively quickly not letting go until I had swallowed every spurt. Twas a bit more than anticipated but erotic nonetheless.