So, I have a new partner. We use condoms every time but once there was some skin to skin contact. A day after we had sex we both experienced soreness. We thought it was due to rough sex but for me two days later the soreness was gone but a few bumps appeared. They are flesh colored, or have a white head like a pimple. They don't itch unless I touch them. They aren't really red unless i irrated them. I don't have any discharge or burning going on. He says he still feels sore but doesn't see any bumps. We used lube also. Can this be an allergic reaction or some sort of STD? we have both been recently tested negative for STDs. Please help! any ideas?