A friend of mine had sex with a girl and he had a minor erection the first condom he used and they were in missionary position and he stopped because he couldn't keep a full erection the condom didn't slip off he got another condom a put it on fully erected but then when to half erection when to changed to the doggy style he had few pumps she told him that the condom was slipping of so he immed pulled out the condom was still her he immediately went to the restroom and washed his penis he had no sores or open cuts on his penis and there was no blood on the penis. What is his chances of getting HIV?