Using condoms or dental dams is the best way to prevent STIs.
Ask what terms they use for their body and what kind of touch they enjoy. Some may have "bottom dysphoria" and prefer not to have their genitals touched at all, while others may be very comfortable with it. how to suck a shemale
Many trans women find that extra lubrication (water-based is usually safest) makes oral sex much more comfortable and pleasurable, especially if the skin is sensitive from hormones. Using condoms or dental dams is the best way to prevent STIs
The most important part of any sexual encounter is understanding your partner's specific preferences. "Shemale" is a term often used in adult entertainment, but in real-life interactions, many people prefer terms like or non-binary . but in real-life interactions