Ok, I went to a bar, met this cute asian girl, and she ended up coming back to my friend's house with us. We ended up hooking up and started having unprotected sex for about 5 seconds before she made me pull out because I didn't have protection. I've had an std once before in college and I'm afraid I might have something although my symptoms are almost unnoticeable. No discharge, itching, redness, or swelling. This happened only a week ago so I'm not sure if I'm just imagining symptoms, but is it possible to get an std from such a short time having unprotected sex? I mean, I literally entered her like 8 times in about 5 seconds and that was it until I pulled out. Someone please put my mind at ease, I have a GF across the country and I refuse to see her until I get this squared away. I realize I'm a cheating problem, but is there anybody who has any knowledge about how easy (or hard) it is for guys to contract an std from someone after such a short amount of time inside a girl?