Yes, you can get HIV from topping (putting your penis in someone else's butt) without a condom. While the risk of getting HIV from topping is about 10 times less than from bottoming, there is still a significant risk. The risk of getting HIV from topping is higher if you are uncircumcised (uncut). If you are not using condoms 100% of the time, PrEP is a great way to protect yourself from HIV. In addition, if you're living with HIV, taking medications for treatment and keeping your HIV viral load undetectable will prevent you from transmitting HIV.