You can tell from the title that you're getting niche porn here, and that niche is slim. We're not talking skinny, but well-formed, petite at times and certainly gorgeous. The main models are also young, 18 to 23 on average, they are from East Europe and are all perfect. They are also up for sex at the drop of a hat, and they appear in 408 hardcore scenes that are either duos or threesomes. They play against older, hunky Russian males with big cocks and perfect bodies who manhandle them around a variety of scenarios, making each movie a different experience, and you get a new one of these each week.

At the core, Slim 4K is a hardcore site, but it adds in the fission of playing with slim, young babes. They may be Russian (or East European) movies, and there are story set-ups at the start of each scene, but there are no subtitles. However, you don't need them as the scenes are usually played in silence, and the acting is so natural, you can tell what's going on without the need for words. Once this initial seduction or meet is over, and it doesn't take long before the couple or threesomes get down to the fun stuff, and then the sounds of slurping, gasps of pleasure and flesh-slapping begin. From then on, it's pure hardcore all the way, with the light, slim girls being turned and positioned in every which way but loose. BJs, pussy licking, pert tits, anal, there are plenty of sub-niches you can add, but mainly, it's pure, hardcore.

It's also exclusive, and everything is shot and shown in 4K HD, with two other options. Movies run for 35 minutes on average, which can mean download files over 4 gigs in size, but you also have two other resolutions to stream and download. The top is 3,840 x 2,160 Ultra HD, followed by 1,920 x 1,080 HD and then 1,280 x 720. There was nothing smaller, and the same goes for streaming, so connection speeds and file storage space might be issues. All files are Mp4, easy to download, and the quality is beyond reproach.

Movies also come with a short description and a set of images. Usually, there are around 50 of these per set at 2,888 x 1,920 px, though I was unable to download the older individual photos. You will find zip files, though, under the 'Archives' tab on a scene's viewing page, and these are also easy to download. You get posed shots from the girls and plenty of hardcore stills too, and again, quality is not an issue.

All the content at Slim 4K is exclusive, and updates are weekly. Your collection of 408 movies grows to 514 when you add in your included network sites. These are linked from the top of each page and open in the same window, so it's like you're in one big site with five channels. Doc Squirt gives you 15 medical-themed movies, My Tiny Wish gives you 43 petite babe movies, Dud Cast is an amateur girls, fake casting couch porn site with 39 videos and My Dirty Novels offers nine threesomes with a hefty stud and two babes in each. Most of these also have photos, but not the casting couch site, which is all held-cam POV, and the high-quality standards of Slim 4K are apparent throughout.

On top of these bonuses, members get easy navigation with some interactive tools, categories, and linked tag words on videos. There's also a model index with some neat stats and info about the girls, but not the guys, and you can link from models to their videos and back with ease. I found no technical issues, everything ran smoothly, and with the sign-up prices being reduced to special offers, I found Slim 4K and excellent value site showing excellent porn.