Attention, students, class is about to begin! Today, we'll learn all about just how wide an asshole can stretch on TeachMyAss. Does everyone have a permission slip? Good. Did everyone bring lots of lube? Good. Let's roll tape!

A couple of key points before getting into it. The chicks on this site are NOT professionals, but you are encouraged to try this at home. To do so, you'll need an 18 to 23-year-old with little knowledge of the anal arts. See that lube you brought to class? You'll need it. As the men on this site demonstrate, they like to warm things up with a bit of rimming, sucking and fingering. After, they not-so-gently apply the lube on her asshole.

Then in come the toys, funky dildos, the guy's cock and, in some cases, a whole fist. As you can see at the end, the babes show just how spacious their assholes have become now that they've been properly poked through.

This informative site takes an educational approach, for the sake of science, we suppose. It really wants you to learn from the process, which is why you get 73 high-res galleries containing very large, very crisp photos. Each episode also has screen caps, but these don't boast great quality, even if they provide lots of details.

For a thorough instruction, the folks behind this site were kind enough to provide 73 videos. These come in good to excellent-quality Windows Media files.

It's unfortunate that updates seem to have been discontinued. I mean, our knowledge is at stake! Nevertheless, as a member, you'll get full access to 34 bonus sites, each with its own subject to teach. These tend to flaunt more adolescent pornstars engaged in softcore to hardcore scenes, such as what you'll find on WeNeedNewTalents, TeenagersGoingWild and TeensGoPorn.

If you don't have everything you need to try this at home, why not spend a few moments on this site to get a crash course on newbie ass fucking? New episodes aren't being added, but it's still worth joining for a little while.