I had sex with a girl without condom. Now i want to have sex with my wife without condom. Is it possible or any risk of aids?
Not really, unless you put it in her butt. More likely herpes, chlamydia or the clap.
You can have sex with wife without condom but you should never have sex with some random girl without condom - STD, HIV, not worth the risk... since you are already getting skin-to-skin contact with your wife!