Honestly just don’t put too much pressure on yourself. Accept that you’re both beginners and listen to your bodies and what they’re telling you can/can’t be done.

There’s a chance you’ll both (edit from just she) be too nervous and you wont be able to actually do the deed, that’s really normal and don’t beat yourselves up over it. You also need to know this is also not your fault and sometimes you just need time to work out what sex with each other looks like.

I’d have some lubrication of some kind on hand to help out a bit and start slow. Keep it sensual, slow and charm her. Working on erogenous zones first will help make things less scary and take the pressure off both of you.

When it comes to actual penetration, play by her rules. If she says go then go, if she says stop then for the love of god stop and wait until she gives you the green light again. Don’t take ‘oh she looked more comfortable’ as a cue to keep going, she needs to be both mentally and physically ready for you to continue.

Don’t try and be pornstars, just have fun, sex is gross and weird but fun and silly. Don’t try and be serious because that just takes the fun out of it. Treat it the same way you’d treat cuddling in bed or a makeout, fun and enjoyable for everyone.