Oh I think it has something to do with getting to make a supposedly “straight” guy squirm and writhe and moan while you give him the blow job and rimming of his lifetime, far better than his girlfriend ever dreamed of giving him!! For me, it would fulfill the fantasy of making love to some of the hot “straight” jocks in high school and college I had wet dreams about😛😛😛😛💦💥💦💥💦💥😁😁😁