Get clear, enthusiastic consent from her before anything sexual.
Ask what she wants, what she does not want, and what boundaries she has.
Make sure both of you are sober enough to consent.
Choose a private, comfortable, and safe place.
Start with kissing and other mutual touching only if she wants that.
Check in verbally during the moment: ask if she likes it and if she wants to continue.
Use protection, such as condoms, to reduce the risk of pregnancy and STIs.
Go slowly and pay attention to her comfort and reactions.
Stop immediately if she says no, seems uncomfortable, or changes her mind.
Respect her boundaries at all times.
Afterward, check in, be kind, and make sure she feels okay.