There are a lot of fake porn films allegedly starring Alicia Machado on the web.
What appears to be the real thing is on pornhub dot com (CAUTION: This is a really hard core explicit sex site) under the title
“Alicia Machado sexo”. At the beginning there is some color footage of her kissing a man and him grabbing her butt. Then there is some black-and-white night-vision footage of the two of them completely (except for their heads) under blankets moving around. Since this was on a reality TV program, it could have been staged.
There is absolutely no nudity. You can see more risque sex on prime time network TV.