No it isn't a high risk, but it doesn't take a high risk to transmit HIV.
so is the brief penetration a high risk if she had hiv?
You are right the dry humping isn't a risk but the unprotected vaginal penetration was a risk. This forum does not discuss symptoms because HIV has no specific symptoms. You can obtain your conclusive negative test result 3 months post exposure.
inserted my penis into vagina literally no more than a second or two..also penis between butcheek dry humping but I did not penetrate so I dont think thats a risk?
You had unprotected sex as to what type?