since “she really likes you” and is waiting a while for sex because of that fact- that makes perfect sense. Some girls have this crazy idea that if you want to date someone you don’t have intercourse with them for like three months. But she lets you have anal intercourse with her? sounds like sex to me.
As far as the rough sex- that seem a little on the extra rough side- which is a major flag that there may be abuse in her past as mentioned by penflex.
Haven’t read your other posts on her but it seems you may be into this girl. If that is the case and you bring another person (girl or guy) into the relationship odds are the relationship will not survive.
It seems to me some bisexual people use their bisexuality to write a new set of rules- such as messing around with someone who is not the same sex is not cheating. Maybe you should have a talk with her and set some rules.
As far as pleasing her- this might be obvious but if she only let’s you go backdoor why not use your hands to explore the front while your snake plumbs the back or use a vibrator/dildo on the front side the few chicks that have let me go backdoor have gone absolutely nuts when I did that- it’s like a threesome without the risk of rubbing your penis up against someone elses penis. . or if she likes it rough try a little choking? (never done that but be VERY careful- people die that way)
