He thought it would be fun to swap condoms. She tried to warn him by cumming inside one of hers, to show how big the difference would be, but he insisted, so she tried one male condom, it barely covered the tip, then he tried the futanari condom, he got really sad about the result.
Surprising enough, seeing her former bully being humiliated by having a smaller dick, turned her on so much that her already monster cock got even more gigantic!