If you've read enough you'd know that you have to start with foreplay, there's this one called hyperventilation (it's animated) and it's actually realistic, same goes for mignon. Foreplay is really important if you want it to stay romantic. There's something called a quickie which means you have sex very quickly like 5 minutes or so because you have to do other things or you're busy and that doesn't need foreplay at all cause you just get into it and you kiss mid way depending on the position.
For the first time it'll hurt ALOT whether you're a man or a woman. A vagina is less worse than an ass because if you didn't know, when you do number 2 sometimes it actually hurts, so if you feel pain from a number 2 imagine what it'll like to have a dick shoved inside your ass. As for a vagina it hurts less, but either way both have a high chance of ripping. If you're a woman for your first time it's better to make your man wait a minute or two so you'd be able to stretch and adjust to the size because you're the one who's receiving receiving YOU need to know whether you're okay with him starting to move or not. As for staying romantic, it's mostly when the Giver keeps checking on the receiver, like "does it feel okay? Should I go slower or faster? Or keep it at this pace?" And also kissing matters ALOT. Like ALOT, whether it's on the lips, face, forehead, head, neck...etc
It kinda calms down the receiver making them relax more and open up more. Which can make things a bit easier but sex will feel slightly painful on the first few times because you don't know how your body fully reacts yet so you wouldn't know what to do in those situations unless you feel where the pain mostly happens. The pain can slowly turned into pleasure by doing this: for women it's often better to focus on the clit because it does the whole job. Some women can feel pleasure from both the clit and the vagina, and others prefer the clit more. And for men, ofcourse you focus on rubbing the dick while receiving.
So yeah, the first time will be painful, you might even rip but that rarely happens for women unless you get yourself a man whose dick is THICK. Manhwas often show us that men have a thick dick which isn't the real case in real life cause most of the times its thin that it slips out on its own. BUT, when women and men are close to their climax they tighten alot. Like it could go from ○ to ° I'm not even joking, it gets so tight that both the receiver and giver might feel pain but it's blocked by pleasure.
Once you try the thighs job position you can't go back, it stings but it's so addictive especially because it mostly focused on the outside so whether the receiver is a man or a woman it's ADDICTIVE