Messy Sex:
I really liked the Milk Junkies, Milk Nymphos, Anal Acrobat series back in the day. They would take a plastic syringe or turkey baster type thing full of milk or cream and squirt it up a girls butt and then they'd have anal sex and she'd then squirt it out. They'd have sex in a bath of milk. They'd rub white frosting, cream, whipped cream on their bodies or bounce their ass on some whipped cream. Another hot scene from another DVD, a girl was mixing cake batter when the guy comes in and they have sex on the flour covered table. She then takes the cake batter bowl and pours it down her breasts and rubs it all over while she rides it reverse cowgirl. I don't really like solo scenes at all, but I recently saw a gloryhole type solo scene where she was giving a blowjob and it was a fake dick that looked very real and it started squirting fake semen all over her face and body and she was rubbing it all over her body in shock at how much was squirting out. It seems to be the same studio that makes this kind of fake orgasm content. There are other studios that have a series where every scene the girl seems to be creaming really hard or orgasming every scene. It's just flowing out during sex. It's likely some sort of imitation orgasm inside her or something, but it's still pretty hot seeing it. Back in the day I also have seen a few DVD scenes where it looked like they used some sort of red jelly or something and it was like the guy was having sex with her while she was on her period. Very taboo but I thought it was kind of hot. Maybe she really was on her period, I don't know.
Oil Themed Scenes:
There are so many good oil DVD scenes, Oil Overload, Oil Explosions, etc. It's a very popular niche and really it's related to messy sex because all the oil is very messy. A lot of the scenes are really them just pouring or squirting oil on the girls but while she rides it.
Anal/More Faster/Hardcore Scenes:
The biggest complaint I hear from people who are against VR porn is that there is not enough anal or that it's boring or slow. I think a lot of DVD porn has gone very hardcore, fast paced pounding in bursts. They edit it that way so the guy pounds it in bursts, then moves to the next position and pounds it in bursts. There have been a lot of VR scenes that I thought were hot but they were just too slow for me that I had to skip them. Sometimes it works, but a lot of times it doesn't work if you are used to seeing faster stuff. I think a lot of mainstream porn watchers are watching mostly all anal content. There are so many anal DVD series titles and first time anal DVDs. The quality in VR is lacking in comparison. I think in part it could be the directing and editing in DVDs is faster paced and has more reaction shots of the girl looking back and reacting to it more in shock. VR seems to lack a lot of that wide mouth, overacting oh my god it's so big type fast anal pounding you get in DVDs. In VR it's definitely more realistic but I think this is one area where I think people have seen the overacting for so long that they appreciate it and want it.
Public Sex:
Public sex scenes can be really hot because of the added taboo nature of them. I've seen quite a few hot scenes in cars, back of vans while they are driving (bang bus), and outside near streets, bridges, etc. One of my favorite Public Sex scenes in Sensei Pearl having sex in a car wash while the car wash is running. They pull up, he puts in money to start it, pulls in and she crawls over and rides it while the car is being soaped down. All the bj intro stuff was done before the car wash part. So the car wash part was her riding it cowgirl and reverse cowgirl in the drivers seat. A very hot scene that would be great in VR.
Water Splashing/Wet Sex:
One thing VR seems to lack that DVD porn has is when the guy fingers the girl really hard and she opens her mouth really wide and you can hear her juices splashing around inside her. Maybe they position a mic really close to capture the sound or they have a good sound effect track, but you are left thinking, wow she is really wet. Something that I think mentally is similar is when there is sex in water that is low leveled and the girl splashes down on it and you can hear all the water splashing as she's bouncing on it and I think that makes you think of how wet she is and it can be really hot.