I still stand by the fact that if the OP didn't agree to the degradation and forceful sex that led to bleeding, then it is sexual assault . these guys now think its okay to treat women like this. I don't think thats right. Also, there are people who climax during rape, its a natural response. So the OP liked it at the time, her body responded, but she is really conflicted and hurting now.
Debs, I hope you feel better soon, both mentally and physically.
Forceful sex (including leaving a person bruised and bleeding) does not mean sexual assault. Sex by force is sexual assault. When you get into a situation like this and say nothing about it, make no attempt to stop it and then go back for more does not sound like its sex by force. Some people get off on forceful sex, yeah to a lot of people that may sound wrong and could be interpreted as sexual assault but its a very different thing (normally everyone in this situation is aware of boundaries) - others like to forget boundaries and leave them self open to any punishment that's on offer (BDSM etc).
I know people can climax when being raped - but they don't usually have the most orgasms ever and go back for more the day after (and don't 'like it at the time'). OP has clearly stated it was not rape and it was consensual.
The only person who knows if it was wrong is the OP, like I said in earlier post - maybe she should speak to these two guys. Explain that things went way too far that, upon reflection were way beyond what she was happy with.