I Was Having Sex With This Guy Yesterday And Everything

i was having sex with this guy yesterday and everything was fine. we both orgasmed and then he wanted to have sex again so i agreed since we hadn't seen each other in a while and clearly still wanted to be close to each other. so we were having sex, we always start with a condom but then continue on using without one since he finds it hard to finish with one on. after he had taken the condom off the second time, i started to get sore, since i haven't been having sex for a long period of time, i know that this can happen to girls vaginas and other areas down there, especially when not using lubricant or anything. so i decided to try to make him orgasm again by doing oral sex. i went down and on his inner thighs they were all red on both sides in sort of a circle motion. now i thought oh well maybe its because we were being rough and his balls were just hitting against him hard which made it red. (it made sense to me) and then before i started to start orally i noticed that about the first half of his penis was very red and a little bumpy. (he is circumcised) so i figured that it could be from him getting raw as well, since i know if i guy masturbates for to long that can also happen, and since he shaves that it could be razor burn as i also get razor burn often. i was just wondering what else it could be and if it is anything to worry about. thanks