I Know That Girl review


- Published on October 23rd, 2017

- Last update on May 14, 2022

- Main niches: AmateurRealityTeen

Part of the growing family of Mofos Network sites, I Know That Girl plays to a pretty common fantasy. We’ve all had that sexy coworker, hot neighbor or ex-girlfriend who we fantasize about and have maybe caught a them looking naughtily at us too. Instead of nothing ever happening, like with us, these sexy chicks hop right on that horny guy’s dick and drain his balls. The site claims that all the videos are user-submitted and amateur content, which is stupid because the video quality and hotness of the chicks say otherwise. Some of the videos claim to be private sextapes submitted without the girl’s consent, which is also pretty stupid since these girls are obviously playing it up for the cameras.

One of the more active sites for the Mofos Network, I Know That Girl houses over 500 unique and exclusive scenes. Videos are uploaded at a rate of a new scene per week, as well as an accompanying photo set. Members are allowed to stream as much as they want at Mofos, but as any porn fan knows about Mofos Network, downloads are going to cost you extra. Their VIP membership is an additional charge of $9.99 per month, and a fair warning that some members have reported having very slow download speeds. But, if streaming is your choice when it comes to porn, then you can disregard this major negative with the Mofos.

Lots of Exclusive Content and Access to the Mofos Network

Perhaps the biggest positive for I Know That Girl is the included access to the Mofos Network. 13 other niche sites, all with different focuses and fetishes, means plenty to explore and jack off too. There is at least one new video uploaded every day to Mofos Network, so you’ll never be bored. I know that the no-download membership is a huge bummer when it comes to recommending this site, but I Know That Girl does have a lot of great, exclusive and sexy content that makes it one of the better sites on the Mofos Network.


  1. Great, exclusive content that you won’t find anywhere else on the Web. HD quality videos and photos.
  2. A consistent upload rate of a new video per week. Over 500 scenes to go back through and watch at your leisure.


  1. No downloads unless you pay an additional charge of $9.99 per month for their VIP access.

Content Amount:

  • 508+ Videos/Galleries
  • Updates: Avg. 1-2 videos/pics per month


  • Video Lenght: Avg. 30 min.
  • Download: HD 1080p (.mp4)
  • Streaming: HD 1080p (Flash)


  • Resolution: HQ 1920×1080 (.jpg)
  • Pics per Set: Avg. 150
  • Zip Files: Yes (~10MB)


  • Total: 400+ (U.S. based)
  • Ages: 18-30+
  • Ethnicities: Mix – mostly white
  • From semi pros to pornstars


2 Days Trial:
[Rebills at $39.99 until cancelled]
1 Month:


3 Months:
[Recurs every 3 months at $59.99]
12 Months:
[Billed yearly at $119.99]

Beware of pre-checked cross sales.

By signing up you automatically gain access to all Mofos Network sites

>> See: Mofos review <<

  • Content Amount
  • Quality
  • Updates
  • Usability
  • Download/Streaming
  • Value

Author Rating


I Know That Girl earns a score of 87% from me. While the exclusive content is fantastic, there isn't exactly a ton of it and some of their older videos are not in HD. But, the site does have a consistent update schedule and is easy to navigate. The major aspect hurting I Know That Girl's score is the fact that you'll have to pay extra to download their scenes, which at $9.99 per month pushes their monthly subscription cost to $39.99 if you signed up for just one month. If Mofos Network would get rid of this stupid extra monthly charge, I would recommend them more.

[Total: 0    Average: 0/5]

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