Being high on weed lowers inhibition and makes you more willing to engage in sex. Using poppers while high takes you over the edge. My FB has a huge cock and, when he is hard, it is a thing of wonder. I love having that thing in my ass. However, if he does poppers, he loses his erection, although he loves doing them. I have to use them to relax my sphincter in order to take all of him, but I have learned not to have him take more than one hit.