I used to hate when somebody would suck my labia in their mouth because I was so embarressed about the size of my labia and the fact that they wold get even bigger and swollen the way you describe. Because back then I didn't know that swollwn labia could be a sexy thing. Anyways it's normal if the guy has sucked a lot so the quistion is wether you think it was horrible because it didn't feel good or because you were embarressed about your swollen labia?? If it's the last, try to turn it into a possitive thing or just ignore it because I'm sure he doesn't think any negative about your swollen labia